5.7.2 Table of each problem that generated exception

This table gives link to each problem that generated an exception. There are [620] such problems.

TableĀ 5.165: List of problems that generated exceptions

#

Exception generated

36

TypeError : bad operand type for unary -: list 
 

39

TypeError : bad operand type for unary -: list 
 

40

TypeError : bad operand type for unary -: list 
 

112

RecursionError : maximum recursion depth exceeded 
 

116

TypeError : cannot determine truth value of Relational 
 

132

TypeError : NoneType object is not subscriptable 
 

146

TypeError : NoneType object is not subscriptable 
 

167

TypeError : bad operand type for unary -: list 
 

422

ValueError : Expected Expr or iterable but got None 
 

495

ValueError : Expected Expr or iterable but got None 
 

497

ValueError : Expected Expr or iterable but got None 
 

502

ValueError : Expected Expr or iterable but got None 
 

527

TypeError : bad operand type for unary -: list 
 

528

TypeError : bad operand type for unary -: list 
 

529

TypeError : bad operand type for unary -: list 
 

676

TypeError : bad operand type for unary -: list 
 

736

RecursionError : maximum recursion depth exceeded 
 

740

TypeError : cannot determine truth value of Relational 
 

756

TypeError : NoneType object is not subscriptable 
 

770

TypeError : NoneType object is not subscriptable 
 

1064

ValueError : Expected Expr or iterable but got None 
 

1149

ZeroDivisionError : polynomial division 
 

1161

ZeroDivisionError : polynomial division 
 

1162

RecursionError : maximum recursion depth exceeded 
 

1181

TypeError : bad operand type for unary -: list 
 

1198

RecursionError : maximum recursion depth exceeded 
 

1239

ZeroDivisionError : polynomial division 
 

1243

RecursionError : maximum recursion depth exceeded 
 

1268

TypeError : property object is not iterable 
 

1272

TypeError : property object is not iterable 
 

1657

TypeError : cannot determine truth value of Relational 
 

1659

ZeroDivisionError : polynomial division 
 

1661

TypeError : cannot determine truth value of Relational 
 

1663

RecursionError : maximum recursion depth exceeded 
 

1665

RecursionError : maximum recursion depth exceeded 
 

1730

TypeError : < not supported between instances of NoneType and Zero 
 

1905

IndexError : list index out of range 
 

1945

ValueError : Expected Expr or iterable but got None 
 

1969

IndexError : list index out of range 
 

2079

ValueError : Expected Expr or iterable but got None 
 

2085

ValueError : Expected Expr or iterable but got None 
 

2086

ValueError : Expected Expr or iterable but got None 
 

2088

ValueError : Expected Expr or iterable but got None 
 

2089

ValueError : Expected Expr or iterable but got None 
 

2090

ValueError : Expected Expr or iterable but got None 
 

2091

ValueError : Expected Expr or iterable but got None 
 

2098

ValueError : Expected Expr or iterable but got None 
 

2103

ValueError : Expected Expr or iterable but got None 
 

2349

TypeError : bad operand type for unary -: list 
 

2359

TypeError : bad operand type for unary -: list 
 

2458

ValueError : Expected Expr or iterable but got None 
 

2464

ValueError : Expected Expr or iterable but got None 
 

2467

ValueError : Expected Expr or iterable but got None 
 

2520

TypeError : bad operand type for unary -: list 
 

2524

TypeError : bad operand type for unary -: list 
 

2534

TypeError : bad operand type for unary -: list 
 

2539

TypeError : bad operand type for unary -: list 
 

2655

ValueError : Expected Expr or iterable but got None 
 

2661

ValueError : Expected Expr or iterable but got None 
 

2663

ValueError : Expected Expr or iterable but got None 
 

2665

ValueError : Expected Expr or iterable but got None 
 

2670

ValueError : Expected Expr or iterable but got None 
 

2868

IndexError : Index out of range: a[1] 
 

2876

RecursionError : maximum recursion depth exceeded 
 

2887

RecursionError : maximum recursion depth exceeded 
 

2893

RecursionError : maximum recursion depth exceeded 
 

2895

ZeroDivisionError : polynomial division 
 

2899

RecursionError : maximum recursion depth exceeded 
 

2964

ZeroDivisionError : polynomial division 
 

3385

ValueError : Expected Expr or iterable but got None 
 

3524

AssertionError : [False] 
 

3557

TypeError : cannot determine truth value of Relational 
 

3650

TypeError : cannot determine truth value of Relational 
 

4007

ValueError : Expected Expr or iterable but got None 
 

4013

ValueError : Expected Expr or iterable but got None 
 

4022

ValueError : Expected Expr or iterable but got None 
 

4031

ValueError : Expected Expr or iterable but got None 
 

4078

TypeError : NoneType object is not subscriptable 
 

4178

ValueError : Expected Expr or iterable but got None 
 

4251

KeyError : _y 
 

4277

TypeError : cannot determine truth value of Relational 
 

4278

IndexError : list index out of range 
 

4314

RecursionError : maximum recursion depth exceeded 
 

4316

TypeError : cannot determine truth value of Relational 
 

4320

RecursionError : maximum recursion depth exceeded 
 

4337

ZeroDivisionError : polynomial division 
 

4360

ValueError : x + sin(y(x))**2*tan(y(x)) is not a solvable differential equation in y(x) 
 

4366

KeyError : ordered_hints 
 

4374

TypeError : bad operand type for unary -: list 
 

4389

IndexError : list index out of range 
 

4399

RecursionError : maximum recursion depth exceeded 
 

4441

TypeError : cannot determine truth value of Relational 
 

4647

TypeError : bad operand type for unary -: list 
 

4649

TypeError : bad operand type for unary -: list 
 

4653

TypeError : bad operand type for unary -: list 
 

4661

RecursionError : maximum recursion depth exceeded 
 

4685

RecursionError : maximum recursion depth exceeded 
 

4713

TypeError : < not supported between instances of NoneType and y 
 

4724

ZeroDivisionError : polynomial division 
 

4725

TypeError : < not supported between instances of NoneType and y 
 

4728

IndexError : Index out of range: a[1] 
 

4756

RecursionError : maximum recursion depth exceeded 
 

4763

TypeError : bad operand type for unary -: list 
 

4767

RecursionError : maximum recursion depth exceeded 
 

4778

NonlinearError : nonlinear term: sqrt(-a*b) 
 

4780

RecursionError : maximum recursion depth exceeded 
 

4798

RecursionError : maximum recursion depth exceeded 
 

4801

TypeError : cannot determine truth value of Relational 
 

4806

TypeError : cannot determine truth value of Relational 
 

4813

RecursionError : maximum recursion depth exceeded 
 

4814

RecursionError : maximum recursion depth exceeded 
 

4818

RecursionError : maximum recursion depth exceeded 
 

4837

TypeError : bad operand type for unary -: list 
 

4872

RecursionError : maximum recursion depth exceeded 
 

4935

TypeError : bad operand type for unary -: list 
 

4938

TypeError : cannot determine truth value of Relational 
 

4963

TypeError : bad operand type for unary -: list 
 

5017

RecursionError : maximum recursion depth exceeded 
 

5018

RecursionError : maximum recursion depth exceeded 
 

5071

ZeroDivisionError : polynomial division 
 

5093

RecursionError : maximum recursion depth exceeded 
 

5097

RecursionError : maximum recursion depth exceeded 
 

5098

RecursionError : maximum recursion depth exceeded 
 

5100

RecursionError : maximum recursion depth exceeded 
 

5106

RecursionError : maximum recursion depth exceeded 
 

5107

RecursionError : maximum recursion depth exceeded 
 

5112

TypeError : cannot determine truth value of Relational 
 

5124

RecursionError : maximum recursion depth exceeded 
 

5157

RecursionError : maximum recursion depth exceeded 
 

5203

ZeroDivisionError : polynomial division 
 

5211

TypeError : cannot determine truth value of Relational 
 

5239

TypeError : cannot determine truth value of Relational 
 

5315

RecursionError : maximum recursion depth exceeded 
 

5440

RecursionError : maximum recursion depth exceeded 
 

5515

ZeroDivisionError : polynomial division 
 

5561

RecursionError : maximum recursion depth exceeded 
 

5563

RecursionError : maximum recursion depth exceeded 
 

5638

IndexError : list index out of range 
 

5639

IndexError : list index out of range 
 

5640

IndexError : list index out of range 
 

5641

IndexError : list index out of range 
 

5643

IndexError : list index out of range 
 

5726

RecursionError : maximum recursion depth exceeded 
 

5744

RecursionError : maximum recursion depth exceeded 
 

5745

RecursionError : maximum recursion depth exceeded 
 

5782

RecursionError : maximum recursion depth exceeded 
 

5789

RecursionError : maximum recursion depth exceeded 
 

5875

TypeError : NoneType object is not subscriptable 
 

5888

RecursionError : maximum recursion depth exceeded 
 

6023

RecursionError : maximum recursion depth exceeded 
 

6035

ZeroDivisionError : polynomial division 
 

6040

ValueError : Expected Expr or iterable but got None 
 

6062

ValueError : Expected Expr or iterable but got None 
 

6261

RecursionError : maximum recursion depth exceeded 
 

6436

RecursionError : maximum recursion depth exceeded 
 

6457

TypeError : cannot determine truth value of Relational 
 

6586

TypeError : cannot determine truth value of Relational 
 

6675

RecursionError : maximum recursion depth exceeded 
 

6676

IndexError : list index out of range 
 

6781

TypeError : cannot determine truth value of Relational 
 

6816

Series solution not supported for ode of order > 2 
 

6817

Series solution not supported for ode of order > 2 
 

6818

IndexError : list index out of range 
 

6821

ValueError : Expected Expr or iterable but got None 
 

6837

ValueError : Expected Expr or iterable but got None 
 

6838

ValueError : Expected Expr or iterable but got None 
 

6839

ValueError : Expected Expr or iterable but got None 
 

6858

ValueError : Expected Expr or iterable but got None 
 

6921

TypeError : argument of type Mul is not iterable 
 

6978

TypeError : bad operand type for unary -: list 
 

6993

TypeError : bad operand type for unary -: list 
 

7014

TypeError : bad operand type for unary -: list 
 

7015

TypeError : bad operand type for unary -: list 
 

7016

TypeError : bad operand type for unary -: list 
 

7017

TypeError : bad operand type for unary -: list 
 

7047

TypeError : bad operand type for unary -: list 
 

7048

ValueError : Rational Solution doesnt exist 
 

7143

ZeroDivisionError : polynomial division 
 

7144

ZeroDivisionError : polynomial division 
 

7211

IndexError : list index out of range 
 

7254

ValueError : Expected Expr or iterable but got None 
 

7268

ValueError : Expected Expr or iterable but got None 
 

7272

ValueError : Expected Expr or iterable but got None 
 

7336

ValueError : Expected Expr or iterable but got None 
 

7339

IndexError : list index out of range 
 

7340

IndexError : list index out of range 
 

7423

RecursionError : maximum recursion depth exceeded 
 

7513

TypeError : bad operand type for unary -: list 
 

7717

ValueError : Expected Expr or iterable but got None 
 

7720

ValueError : Expected Expr or iterable but got None 
 

7733

ZeroDivisionError : polynomial division 
 

7767

TypeError : property object is not iterable 
 

7851

KeyError : _y 
 

7878

TypeError : cannot determine truth value of Relational 
 

8014

TypeError : cannot determine truth value of Relational 
 

8134

IndexError : list index out of range 
 

8135

IndexError : list index out of range 
 

8152

ValueError : Expected Expr or iterable but got None 
 

8153

ValueError : Expected Expr or iterable but got None 
 

8155

ValueError : Expected Expr or iterable but got None 
 

8158

ValueError : Expected Expr or iterable but got None 
 

8160

Series solution not supported for ode of order > 2 
 

8161

Series solution not supported for ode of order > 2 
 

8162

Series solution not supported for ode of order > 2 
 

8163

Series solution not supported for ode of order > 2 
 

8213

TypeError : bad operand type for unary -: list 
 

8217

TypeError : argument of type NegativeOne is not iterable 
 

8232

IndexError : list index out of range 
 

8282

ValueError : Expected Expr or iterable but got None 
 

8541

IndexError : list index out of range 
 

8638

IndexError : tuple index out of range 
 

8679

ValueError : Expected Expr or iterable but got None 
 

8748

RecursionError : maximum recursion depth exceeded 
 

8793

TypeError : bad operand type for unary -: list 
 

8797

TypeError : bad operand type for unary -: list 
 

8804

TypeError : bad operand type for unary -: list 
 

8880

TypeError : bad operand type for unary -: list 
 

8923

ValueError : Expected Expr or iterable but got None 
 

8948

ValueError : Expected Expr or iterable but got None 
 

9003

RecursionError : maximum recursion depth exceeded 
 

9004

RecursionError : maximum recursion depth exceeded 
 

9005

RecursionError : maximum recursion depth exceeded 
 

9006

RecursionError : maximum recursion depth exceeded 
 

9014

TypeError : bad operand type for unary -: list 
 

9031

TypeError : cannot determine truth value of Relational 
 

9032

TypeError : cannot determine truth value of Relational 
 

9047

TypeError : argument of type Mul is not iterable 
 

9049

TypeError : argument of type Mul is not iterable 
 

9074

TypeError : cannot determine truth value of Relational 
 

9077

TypeError : cannot determine truth value of Relational 
 

9091

TypeError : bad operand type for unary -: list 
 

9134

ZeroDivisionError : polynomial division 
 

9136

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], [], [], []] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)], [ANP([mpq(-1,1), mpq(-1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

9158

ValueError : Expected Expr or iterable but got None 
 

9164

TypeError : bad operand type for unary -: list 
 

9166

ValueError : Expected Expr or iterable but got None 
 

9351

ValueError : Expected Expr or iterable but got None 
 

9352

ValueError : Expected Expr or iterable but got None 
 

9354

ValueError : Expected Expr or iterable but got None 
 

9361

ValueError : Expected Expr or iterable but got None 
 

9380

ValueError : Expected Expr or iterable but got None 
 

9408

TypeError : invalid input: 1 - (-21 + 4*sqrt(5))/(-1 + 2*sqrt(5)) 
 

9428

ValueError : Expected Expr or iterable but got None 
 

9496

ValueError : Expected Expr or iterable but got None 
 

9771

ValueError : Expected Expr or iterable but got None 
 

9772

ValueError : Expected Expr or iterable but got None 
 

9774

ValueError : Expected Expr or iterable but got None 
 

9781

ValueError : Expected Expr or iterable but got None 
 

9800

ValueError : Expected Expr or iterable but got None 
 

9833

TypeError : invalid input: 1 - (-21 + 4*sqrt(5))/(-1 + 2*sqrt(5)) 
 

9853

ValueError : Expected Expr or iterable but got None 
 

9925

ValueError : Expected Expr or iterable but got None 
 

10032

TypeError : bad operand type for unary -: list 
 

10034

TypeError : bad operand type for unary -: list 
 

10050

RecursionError : maximum recursion depth exceeded 
 

10066

RecursionError : maximum recursion depth exceeded 
 

10089

TypeError : < not supported between instances of NoneType and y 
 

10107

TypeError : bad operand type for unary -: list 
 

10109

RecursionError : maximum recursion depth exceeded 
 

10116

NonlinearError : nonlinear term: sqrt(-a*b) 
 

10123

RecursionError : maximum recursion depth exceeded 
 

10125

RecursionError : maximum recursion depth exceeded 
 

10128

RecursionError : maximum recursion depth exceeded 
 

10156

RecursionError : maximum recursion depth exceeded 
 

10157

RecursionError : maximum recursion depth exceeded 
 

10174

RecursionError : maximum recursion depth exceeded 
 

10175

RecursionError : maximum recursion depth exceeded 
 

10177

TypeError : bad operand type for unary -: list 
 

10179

TypeError : bad operand type for unary -: list 
 

10187

TypeError : bad operand type for unary -: list 
 

10190

TypeError : bad operand type for unary -: list 
 

10213

RecursionError : maximum recursion depth exceeded 
 

10214

RecursionError : maximum recursion depth exceeded 
 

10356

TypeError : cannot determine truth value of Relational 
 

10370

TypeError : cannot determine truth value of Relational 
 

10421

RecursionError : maximum recursion depth exceeded 
 

10496

RecursionError : maximum recursion depth exceeded 
 

10542

IndexError : list index out of range 
 

10543

IndexError : list index out of range 
 

10575

TypeError : argument of type Mul is not iterable 
 

10623

RecursionError : maximum recursion depth exceeded 
 

10638

IndexError : Index out of range: a[1] 
 

10699

IndexError : Index out of range: a[1] 
 

10708

IndexError : Index out of range: a[1] 
 

10712

TypeError : Invalid NaN comparison 
 

10781

TypeError : Invalid NaN comparison 
 

10782

IndexError : Index out of range: a[1] 
 

10783

IndexError : Index out of range: a[1] 
 

10787

IndexError : Index out of range: a[1] 
 

10788

IndexError : Index out of range: a[1] 
 

10789

IndexError : Index out of range: a[1] 
 

10793

TypeError : argument of type Mul is not iterable 
 

10798

TypeError : argument of type Mul is not iterable 
 

10807

TypeError : argument of type Mul is not iterable 
 

10848

TypeError : argument of type Mul is not iterable 
 

10849

TypeError : argument of type Mul is not iterable 
 

10855

TypeError : argument of type Mul is not iterable 
 

10961

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], []] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

10964

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], []] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

10965

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], []] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

10986

IndexError : Index out of range: a[1] 
 

11010

TypeError : Symbol object cannot be interpreted as an integer 
 

11011

TypeError : Mul object cannot be interpreted as an integer 
 

11012

TypeError : Mul object cannot be interpreted as an integer 
 

11022

TypeError : cannot determine truth value of Relational 
 

11023

TypeError : cannot determine truth value of Relational 
 

11029

TypeError : cannot determine truth value of Relational 
 

11051

TypeError : Add object cannot be interpreted as an integer 
 

11063

TypeError : cannot determine truth value of Relational 
 

11064

TypeError : cannot determine truth value of Relational 
 

11065

TypeError : cannot determine truth value of Relational 
 

11066

TypeError : cannot determine truth value of Relational 
 

11067

TypeError : cannot determine truth value of Relational 
 

11086

TypeError : invalid input: 1 - v 
 

11087

TypeError : invalid input: 1 - a 
 

11088

TypeError : invalid input: 1 - a 
 

11089

ValueError : Expected Expr or iterable but got None 
 

11090

ValueError : Expected Expr or iterable but got None 
 

11095

ValueError : Expected Expr or iterable but got None 
 

11098

ValueError : Expected Expr or iterable but got None 
 

11099

ValueError : Expected Expr or iterable but got None 
 

11100

ValueError : Expected Expr or iterable but got None 
 

11101

ValueError : Expected Expr or iterable but got None 
 

11102

ValueError : Expected Expr or iterable but got None 
 

11106

ValueError : Expected Expr or iterable but got None 
 

11120

ValueError : Expected Expr or iterable but got None 
 

11122

TypeError : invalid input: 1 - b/a 
 

11136

ValueError : Expected Expr or iterable but got None 
 

11153

ValueError : Expected Expr or iterable but got None 
 

11171

TypeError : invalid input: 1 - a 
 

11172

ValueError : Expected Expr or iterable but got None 
 

11179

ValueError : Expected Expr or iterable but got None 
 

11182

ValueError : Expected Expr or iterable but got None 
 

11187

ValueError : Expected Expr or iterable but got None 
 

11188

ValueError : Expected Expr or iterable but got None 
 

11189

ValueError : Expected Expr or iterable but got None 
 

11192

ValueError : Expected Expr or iterable but got None 
 

11193

ValueError : Expected Expr or iterable but got None 
 

11194

ValueError : Expected Expr or iterable but got None 
 

11196

ValueError : Expected Expr or iterable but got None 
 

11197

ValueError : Expected Expr or iterable but got None 
 

11198

ValueError : Expected Expr or iterable but got None 
 

11200

ValueError : Expected Expr or iterable but got None 
 

11201

ValueError : Expected Expr or iterable but got None 
 

11202

ValueError : Expected Expr or iterable but got None 
 

11216

TypeError : cannot determine truth value of Relational 
 

11232

ValueError : Expected Expr or iterable but got None 
 

11235

ValueError : Expected Expr or iterable but got None 
 

11238

ValueError : Expected Expr or iterable but got None 
 

11239

ValueError : Expected Expr or iterable but got None 
 

11255

ValueError : Expected Expr or iterable but got None 
 

11258

ValueError : Expected Expr or iterable but got None 
 

11265

ValueError : Expected Expr or iterable but got None 
 

11275

ValueError : Expected Expr or iterable but got None 
 

11276

ValueError : Expected Expr or iterable but got None 
 

11297

ValueError : Expected Expr or iterable but got None 
 

11304

ValueError : Expected Expr or iterable but got None 
 

11308

ValueError : Expected Expr or iterable but got None 
 

11312

ValueError : Expected Expr or iterable but got None 
 

11313

ValueError : Expected Expr or iterable but got None 
 

11318

ValueError : Expected Expr or iterable but got None 
 

11335

ValueError : Expected Expr or iterable but got None 
 

11336

ValueError : Expected Expr or iterable but got None 
 

11338

ValueError : Expected Expr or iterable but got None 
 

11339

ValueError : Expected Expr or iterable but got None 
 

11340

ValueError : Expected Expr or iterable but got None 
 

11341

ValueError : Expected Expr or iterable but got None 
 

11342

ValueError : Expected Expr or iterable but got None 
 

11343

ValueError : Expected Expr or iterable but got None 
 

11355

ValueError : Expected Expr or iterable but got None 
 

11363

ValueError : Expected Expr or iterable but got None 
 

11366

IndexError : list index out of range 
 

11367

ValueError : Expected Expr or iterable but got None 
 

11368

ValueError : Expected Expr or iterable but got None 
 

11370

ValueError : Expected Expr or iterable but got None 
 

11373

ValueError : Expected Expr or iterable but got None 
 

11381

ValueError : Expected Expr or iterable but got None 
 

11388

TypeError : invalid input: 1 - a 
 

11389

TypeError : Symbol object cannot be interpreted as an integer 
 

11418

TypeError : cannot determine truth value of Relational 
 

11419

TypeError : cannot determine truth value of Relational 
 

11420

TypeError : cannot determine truth value of Relational 
 

11542

RecursionError : maximum recursion depth exceeded 
 

11617

TypeError : invalid input: 2*a + b 
 

11643

TypeError : cannot determine truth value of Relational 
 

11746

NotInvertible : zero divisor 
 

11774

ODEMatchError : nth_linear_constant_coeff_undetermined_coefficients solver cannot solve: nan 
 

11805

KeyError : Derivative(y(t), (t, 2)) 
 

11808

KeyError : Derivative(y(t), t) 
 

11833

ValueError : substitution cannot create dummy dependencies 
 

11840

ZeroDivisionError : polynomial division 
 

11845

TypeError : NoneType object is not subscriptable 
 

11852

KeyError : F2_ 
 

11853

AttributeError : list object has no attribute func 
 

11855

KeyError : F2_ 
 

11856

KeyError : F2_ 
 

11974

RecursionError : maximum recursion depth exceeded 
 

11975

RecursionError : maximum recursion depth exceeded 
 

12047

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], [ANP([mpq(-1,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

12051

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], [ANP([mpq(-1,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

12066

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], [ANP([mpq(-1,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

12070

TypeError : Invalid NaN comparison 
 

12132

TypeError : Invalid NaN comparison 
 

12141

TypeError : Invalid NaN comparison 
 

12216

IndexError : Index out of range: a[1] 
 

12248

TypeError : argument of type Pow is not iterable 
 

12252

ZeroDivisionError : polynomial division 
 

12378

HeuristicGCDFailed : no luck 
 

12428

TypeError : Symbol object cannot be interpreted as an integer 
 

12429

TypeError : Mul object cannot be interpreted as an integer 
 

12430

TypeError : Add object cannot be interpreted as an integer 
 

12431

TypeError : Mul object cannot be interpreted as an integer 
 

12437

TypeError : Mul object cannot be interpreted as an integer 
 

12438

TypeError : Mul object cannot be interpreted as an integer 
 

12453

TypeError : Mul object cannot be interpreted as an integer 
 

12466

TypeError : Add object cannot be interpreted as an integer 
 

12467

RecursionError : maximum recursion depth exceeded 
 

12468

TypeError : Mul object cannot be interpreted as an integer 
 

12469

RecursionError : maximum recursion depth exceeded 
 

12470

RecursionError : maximum recursion depth exceeded 
 

12471

TypeError : Symbol object cannot be interpreted as an integer 
 

12472

TypeError : Add object cannot be interpreted as an integer 
 

12473

TypeError : Symbol object cannot be interpreted as an integer 
 

12474

TypeError : Add object cannot be interpreted as an integer 
 

12475

TypeError : Add object cannot be interpreted as an integer 
 

12476

TypeError : Add object cannot be interpreted as an integer 
 

12477

TypeError : Add object cannot be interpreted as an integer 
 

12478

TypeError : Add object cannot be interpreted as an integer 
 

12479

TypeError : Symbol object cannot be interpreted as an integer 
 

12480

TypeError : Add object cannot be interpreted as an integer 
 

12481

TypeError : Add object cannot be interpreted as an integer 
 

12483

TypeError : invalid input: 1 - a 
 

12484

TypeError : invalid input: 1 - a 
 

12485

ValueError : Expected Expr or iterable but got None 
 

12486

TypeError : invalid input: 1 - n 
 

12487

ValueError : Expected Expr or iterable but got None 
 

12488

TypeError : invalid input: 1 - a 
 

12489

ValueError : Expected Expr or iterable but got None 
 

12491

ValueError : Expected Expr or iterable but got None 
 

12492

ValueError : Expected Expr or iterable but got None 
 

12493

ValueError : Expected Expr or iterable but got None 
 

12494

ValueError : Expected Expr or iterable but got None 
 

12495

ValueError : Expected Expr or iterable but got None 
 

12500

ValueError : Expected Expr or iterable but got None 
 

12503

ValueError : Expected Expr or iterable but got None 
 

12504

ValueError : Expected Expr or iterable but got None 
 

12505

ValueError : Expected Expr or iterable but got None 
 

12507

ValueError : Expected Expr or iterable but got None 
 

12511

ValueError : Expected Expr or iterable but got None 
 

12512

RecursionError : maximum recursion depth exceeded 
 

12515

ValueError : Expected Expr or iterable but got None 
 

12516

ValueError : Expected Expr or iterable but got None 
 

12517

ValueError : Expected Expr or iterable but got None 
 

12518

ValueError : Expected Expr or iterable but got None 
 

12520

ValueError : Expected Expr or iterable but got None 
 

12524

ValueError : Expected Expr or iterable but got None 
 

12530

TypeError : Add object cannot be interpreted as an integer 
 

12535

ValueError : Expected Expr or iterable but got None 
 

12536

ValueError : Expected Expr or iterable but got None 
 

12538

ValueError : Expected Expr or iterable but got None 
 

12540

ValueError : Expected Expr or iterable but got None 
 

12541

ValueError : Expected Expr or iterable but got None 
 

12550

TypeError : invalid input: 2*a + 1 
 

12551

ValueError : Expected Expr or iterable but got None 
 

12552

ValueError : Expected Expr or iterable but got None 
 

12553

TypeError : invalid input: 1 - a 
 

12554

ValueError : Expected Expr or iterable but got None 
 

12556

ValueError : Expected Expr or iterable but got None 
 

12559

ValueError : Expected Expr or iterable but got None 
 

12560

ValueError : Expected Expr or iterable but got None 
 

12562

ValueError : Expected Expr or iterable but got None 
 

12563

ValueError : Expected Expr or iterable but got None 
 

12564

RecursionError : maximum recursion depth exceeded 
 

12565

TypeError : Symbol object cannot be interpreted as an integer 
 

12566

ValueError : Expected Expr or iterable but got None 
 

12567

ValueError : Expected Expr or iterable but got None 
 

12568

ValueError : Expected Expr or iterable but got None 
 

12592

ValueError : Expected Expr or iterable but got None 
 

12593

ValueError : Expected Expr or iterable but got None 
 

12611

ValueError : Expected Expr or iterable but got None 
 

12614

ValueError : Expected Expr or iterable but got None 
 

12615

ValueError : Expected Expr or iterable but got None 
 

12618

ValueError : Expected Expr or iterable but got None 
 

12619

ValueError : Expected Expr or iterable but got None 
 

12621

ValueError : Expected Expr or iterable but got None 
 

12624

ValueError : Expected Expr or iterable but got None 
 

12625

ValueError : Expected Expr or iterable but got None 
 

12631

ValueError : Expected Expr or iterable but got None 
 

12636

TypeError : Add object cannot be interpreted as an integer 
 

12640

ValueError : Expected Expr or iterable but got None 
 

12652

TypeError : Add object cannot be interpreted as an integer 
 

12653

TypeError : Add object cannot be interpreted as an integer 
 

12663

TypeError : Add object cannot be interpreted as an integer 
 

12670

TypeError : Symbol object cannot be interpreted as an integer 
 

12671

TypeError : Add object cannot be interpreted as an integer 
 

12672

TypeError : Add object cannot be interpreted as an integer 
 

12673

TypeError : Add object cannot be interpreted as an integer 
 

12674

TypeError : Mul object cannot be interpreted as an integer 
 

12675

TypeError : Symbol object cannot be interpreted as an integer 
 

12677

TypeError : Add object cannot be interpreted as an integer 
 

12678

TypeError : Add object cannot be interpreted as an integer 
 

12679

TypeError : Symbol object cannot be interpreted as an integer 
 

12680

TypeError : Add object cannot be interpreted as an integer 
 

12681

TypeError : Add object cannot be interpreted as an integer 
 

12682

TypeError : Symbol object cannot be interpreted as an integer 
 

12683

TypeError : Symbol object cannot be interpreted as an integer 
 

12684

TypeError : Add object cannot be interpreted as an integer 
 

12685

TypeError : Add object cannot be interpreted as an integer 
 

12736

RecursionError : maximum recursion depth exceeded 
 

12827

IndexError : list index out of range 
 

12915

ValueError : Expected Expr or iterable but got None 
 

12939

TypeError : cannot determine truth value of Relational 
 

12964

TypeError : bad operand type for unary -: list 
 

13006

TypeError : bad operand type for unary -: list 
 

13231

TypeError : cannot determine truth value of Relational 
 

13278

TypeError : bad operand type for unary -: list 
 

13508

TypeError : Invalid comparison of non-real 1 + sqrt(7)*I 
 

13603

ValueError : Expected Expr or iterable but got None 
 

13605

TypeError : cannot determine truth value of Relational 
 

13673

TypeError : exp takes exactly 1 argument (2 given) 
 

13677

TypeError : cannot determine truth value of Relational 
 

13745

ValueError : Expected Expr or iterable but got None 
 

13789

RecursionError : maximum recursion depth exceeded 
 

13794

TypeError : < not supported between instances of NoneType and y 
 

13798

TypeError : bad operand type for unary -: list 
 

13800

TypeError : bad operand type for unary -: list 
 

13804

TypeError : bad operand type for unary -: list 
 

13885

IndexError : Index out of range: a[1] 
 

13920

ValueError : Expected Expr or iterable but got None 
 

13927

ValueError : Expected Expr or iterable but got None 
 

13936

ZeroDivisionError : polynomial division 
 

13937

PolynomialDivisionFailed : couldnt reduce degree in a polynomial division algorithm when dividing [[], [ANP([mpq(-1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(4,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(6,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-4,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]] by [[ANP([mpq(1,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1), mpq(0,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ), ANP([mpq(-2,1)], [mpq(1,1), mpq(0,1), mpq(1,1)], QQ)]]. This can happen when its not possible to detect zero in the coefficient domain. The domain of computation is QQ<I>. Zero detection is guaranteed in this coefficient domain. This may indicate a bug in SymPy or the domain is user defined and doesnt implement zero detection properly. 
 

13998

ValueError : function with different numbers of args 
 

14053

OverflowError : mpz too large to convert to float 
 

14116

RecursionError : maximum recursion depth exceeded 
 

14126

RecursionError : maximum recursion depth exceeded 
 

14140

RecursionError : maximum recursion depth exceeded 
 

14217

TypeError : bad operand type for unary -: list 
 

14288

TypeError : bad operand type for unary -: list 
 

14289

TypeError : bad operand type for unary -: list 
 

14573

TypeError : bad operand type for unary -: list 
 

14595

TypeError : bad operand type for unary -: list 
 

14596

TypeError : bad operand type for unary -: list 
 

14603

IndexError : Index out of range: a[1] 
 

14607

IndexError : list index out of range 
 

14608

IndexError : list index out of range 
 

14609

IndexError : list index out of range 
 

14610

IndexError : list index out of range 
 

14957

TypeError : bad operand type for unary -: list 
 

14962

TypeError : bad operand type for unary -: list 
 

14966

ValueError : Rational Solution doesnt exist 
 

15015

TypeError : bad operand type for unary -: list 
 

15059

TypeError : cannot determine truth value of Relational 
 

15118

RecursionError : maximum recursion depth exceeded 
 

15148

ValueError : Rational Solution doesnt exist 
 

15640

IndexError : list index out of range 
 

15641

IndexError : list index out of range 
 

15643

IndexError : list index out of range 
 

15644

ValueError : Expected Expr or iterable but got None 
 

15648

ValueError : Expected Expr or iterable but got None 
 

15655

ValueError : Expected Expr or iterable but got None 
 

15681

PolynomialError : non-commutative expressions are not supported 
 

15718

ZeroDivisionError : polynomial division 
 

15790

TypeError : bad operand type for unary -: list 
 

15795

ValueError : Rational Solution doesnt exist 
 

16026

RecursionError : maximum recursion depth exceeded 
 

16036

TypeError : cannot determine truth value of Relational 
 

16044

TypeError : cannot determine truth value of Relational 
 

16101

TypeError : bad operand type for unary -: list 
 

16133

TypeError : cannot determine truth value of Relational 
 

16461

ValueError : Expected Expr or iterable but got None 
 

16479

ValueError : Expected Expr or iterable but got None 
 

16486

ValueError : Expected Expr or iterable but got None 
 

16548

ValueError : Expected Expr or iterable but got None 
 

16593

TypeError : bad operand type for unary -: list 
 

16613

TypeError : bad operand type for unary -: list 
 

16627

TypeError : bad operand type for unary -: list 
 

16628

TypeError : bad operand type for unary -: list 
 

16666

TypeError : cannot determine truth value of Relational 
 

16804

TypeError : NoneType object is not subscriptable 
 

17104

RecursionError : maximum recursion depth exceeded 
 

17134

Series solution not supported for ode of order > 2 
 

17176

ValueError : It solves only those systems of equations whose orders are equal 
 

17182

TypeError : NoneType object is not subscriptable 
 

17257

ZeroDivisionError : polynomial division 
 

17329

RecursionError : maximum recursion depth exceeded 
 

17355

RecursionError : maximum recursion depth exceeded 
 

17371

TypeError : bad operand type for unary -: list 
 

17510

ValueError : Expected Expr or iterable but got None 
 

17853

TypeError : bad operand type for unary -: list 
 

17881

IndexError : list index out of range 
 

17901

ODEMatchError : nth_linear_constant_coeff_undetermined_coefficients solver cannot solve: nan 
 

17905

TypeError : cannot determine truth value of Relational 
 

17963

TypeError : invalid input: 1 - 2*p 
 

18040

TypeError : cannot determine truth value of Relational 
 

18054

KeyError : _y 
 

18131

TypeError : cannot determine truth value of Relational 
 

18132

IndexError : list index out of range 
 

18159

ZeroDivisionError : polynomial division 
 

18172

ZeroDivisionError : polynomial division 
 

18210

TypeError : cannot determine truth value of Relational 
 

18212

ValueError : Expected Expr or iterable but got None 
 

18216

TypeError : cannot determine truth value of Relational 
 

18350

ValueError : Expected Expr or iterable but got None 
 

18478

RecursionError : maximum recursion depth exceeded 
 

18569

RecursionError : maximum recursion depth exceeded 
 

18728

RecursionError : maximum recursion depth exceeded 
 

18776

IndexError : list index out of range 
 

18887

TypeError : < not supported between instances of NoneType and y 
 

18896

TypeError : cannot determine truth value of Relational 
 

18939

ValueError : Expected Expr or iterable but got None 
 

19042

TypeError : < not supported between instances of NoneType and y 
 

19069

TypeError : < not supported between instances of NoneType and x 
 

19355

TypeError : < not supported between instances of NoneType and y 
 

19380

ValueError : Expected Expr or iterable but got None 
 

19381

ValueError : Expected Expr or iterable but got None 
 

19387

TypeError : invalid input: 2*n + 1 
 

19485

IndexError : list index out of range 
 

19527

ZeroDivisionError : polynomial division 
 

19537

TypeError : cannot determine truth value of Relational