Chapter 2
detailed summary tables of results

 2.1 List of integrals sorted by grade for each CAS
  2.1.1 Rubi
  2.1.2 Mathematica
  2.1.3 Maple
  2.1.4 Maxima
  2.1.5 FriCAS
  2.1.6 Sympy
  2.1.7 Giac
 2.2 Detailed conclusion table per each integral for all CAS systems
 2.3 Detailed conclusion table specific for Rubi results

2.1 List of integrals sorted by grade for each CAS

2.1.1 Rubi

A grade: { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 }

B grade: { }

C grade: { }

F grade: { }

2.1.2 Mathematica

A grade: { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 }

B grade: { }

C grade: { }

F grade: { }

2.1.3 Maple

A grade: { }

B grade: { }

C grade: { 1, 2, 3, 4, 8, 9, 10, 11, 15, 16, 17, 18 }

F grade: { 5, 6, 7, 12, 13, 14, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 }

2.1.4 Maxima

A grade: {

B grade: { }

C grade: { }

F grade: { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 }

2.1.5 FriCAS

A grade: { }

B grade: { 1, 2, 3, 4, 8, 9, 10, 11, 15, 16, 17, 18 }

C grade: { }

F grade: { 5, 6, 7, 12, 13, 14, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 }

2.1.6 Sympy

A grade: { }

B grade: { }

C grade: { 5, 6, 12, 19, 22, 23, 24, 25, 31, 32 }

F grade: { 1, 2, 3, 4, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 20, 21, 26, 27, 28, 29, 30, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 }

2.1.7 Giac

A grade: { }

B grade: { 1, 2, 3, 4, 8, 9, 10, 11, 16, 17, 18 }

C grade: { }

F grade: { 5, 6, 7, 12, 13, 14, 15, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46 }

2.2 Detailed conclusion table per each integral for all CAS systems

Detailed conclusion table per each integral is given by table below. The elapsed time is in seconds. For failed result it is given as F(-1) if the failure was due to timeout. It is given as F(-2) if the failure was due to an exception being raised, which could indicate a bug in the system. If the failure was due to integral not being evaluated within the time limit, then it is given just an F.

In this table,the column normalized size is defined as \(\frac{\text{antiderivative leaf size}}{\text{optimal antiderivative leaf size}}\)










Problem 1 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 210 210 172 4972 0 6700 0 9351
normalized size 1 1. 0.82 23.68 0. 31.9 0. 44.53
time (sec) N/A 0.27 0.605 0.152 0. 1.364 0. 1.669


















Problem 2 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 160 160 129 2410 0 3420 0 4610
normalized size 1 1. 0.81 15.06 0. 21.38 0. 28.81
time (sec) N/A 0.176 0.311 0.075 0. 1.212 0. 1.128


















Problem 3 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-2) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 108 108 84 891 0 1354 0 1742
normalized size 1 1. 0.78 8.25 0. 12.54 0. 16.13
time (sec) N/A 0.084 0.147 0.056 0. 1.135 0. 1.123


















Problem 4 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-2) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 66 66 49 262 0 463 0 441
normalized size 1 1. 0.74 3.97 0. 7.02 0. 6.68
time (sec) N/A 0.04 0.059 0.09 0. 1.081 0. 1.257


















Problem 5 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 120 120 95 0 0 0 666 0
normalized size 1 1. 0.79 0. 0. 0. 5.55 0.
time (sec) N/A 0.12 0.151 0.397 0. 0. 10.615 0.


















Problem 6 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 177 177 110 0 0 0 4129 0
normalized size 1 1. 0.62 0. 0. 0. 23.33 0.
time (sec) N/A 0.258 0.153 0.379 0. 0. 52.69 0.


















Problem 7 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 228 228 136 0 0 0 0 0
normalized size 1 1. 0.6 0. 0. 0. 0. 0.
time (sec) N/A 0.273 0.162 0.354 0. 0. 0. 0.


















Problem 8 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 318 318 273 11389 0 14151 0 20733
normalized size 1 1. 0.86 35.81 0. 44.5 0. 65.2
time (sec) N/A 0.411 1.107 0.175 0. 1.796 0. 1.432


















Problem 9 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 237 237 199 5908 0 7675 0 10939
normalized size 1 1. 0.84 24.93 0. 32.38 0. 46.16
time (sec) N/A 0.31 0.544 0.116 0. 1.459 0. 1.294


















Problem 10 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 160 160 129 2410 0 3268 0 4610
normalized size 1 1. 0.81 15.06 0. 20.42 0. 28.81
time (sec) N/A 0.172 0.343 0.076 0. 1.248 0. 1.19


















Problem 11 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-2) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 102 102 78 732 0 1208 0 1381
normalized size 1 1. 0.76 7.18 0. 11.84 0. 13.54
time (sec) N/A 0.076 0.11 0.052 0. 1.12 0. 1.09


















Problem 12 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 185 185 153 0 0 0 1085 0
normalized size 1 1. 0.83 0. 0. 0. 5.86 0.
time (sec) N/A 0.226 0.26 0.505 0. 0. 27.206 0.


















Problem 13 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 268 268 159 0 0 0 0 0
normalized size 1 1. 0.59 0. 0. 0. 0. 0.
time (sec) N/A 0.669 0.246 0.5 0. 0. 0. 0.


















Problem 14 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 322 322 168 0 0 0 0 0
normalized size 1 1. 0.52 0. 0. 0. 0. 0.
time (sec) N/A 0.544 0.24 0.498 0. 0. 0. 0.


















Problem 15 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) F(-1)
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 410 410 358 20937 0 24423 0 0
normalized size 1 1. 0.87 51.07 0. 59.57 0. 0.
time (sec) N/A 0.624 0.943 0.266 0. 2.391 0. 0.


















Problem 16 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 310 310 265 11389 0 14151 0 20733
normalized size 1 1. 0.85 36.74 0. 45.65 0. 66.88
time (sec) N/A 0.414 1.136 0.179 0. 1.78 0. 1.463


















Problem 17 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 210 210 172 4972 0 6376 0 9351
normalized size 1 1. 0.82 23.68 0. 30.36 0. 44.53
time (sec) N/A 0.258 0.518 0.111 0. 1.404 0. 1.267


















Problem 18 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A C F(-2) B F(-1) B
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 137 137 106 1609 0 2437 0 3075
normalized size 1 1. 0.77 11.74 0. 17.79 0. 22.45
time (sec) N/A 0.111 0.15 0.067 0. 1.164 0. 1.158


















Problem 19 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 270 270 229 0 0 0 1503 0
normalized size 1 1. 0.85 0. 0. 0. 5.57 0.
time (sec) N/A 0.389 0.521 0.487 0. 0. 56.133 0.


















Problem 20 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 394 389 217 0 0 0 0 0
normalized size 1 0.99 0.55 0. 0. 0. 0. 0.
time (sec) N/A 1.024 0.443 0.492 0. 0. 0. 0.


















Problem 21 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 380 380 332 0 0 0 0 0
normalized size 1 1. 0.87 0. 0. 0. 0. 0.
time (sec) N/A 0.621 0.896 0.492 0. 0. 0. 0.


















Problem 22 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 272 272 231 0 0 0 1503 0
normalized size 1 1. 0.85 0. 0. 0. 5.53 0.
time (sec) N/A 0.398 0.53 0.493 0. 0. 56.49 0.


















Problem 23 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 187 187 154 0 0 0 1085 0
normalized size 1 1. 0.82 0. 0. 0. 5.8 0.
time (sec) N/A 0.254 0.289 0.491 0. 0. 26.428 0.


















Problem 24 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 122 122 95 0 0 0 666 0
normalized size 1 1. 0.78 0. 0. 0. 5.46 0.
time (sec) N/A 0.126 0.147 0.347 0. 0. 9.554 0.


















Problem 25 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 78 78 57 0 0 0 284 0
normalized size 1 1. 0.73 0. 0. 0. 3.64 0.
time (sec) N/A 0.04 0.065 0.36 0. 0. 3.17 0.


















Problem 26 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 127 127 102 0 0 0 0 0
normalized size 1 1. 0.8 0. 0. 0. 0. 0.
time (sec) N/A 0.144 0.128 0.676 0. 0. 0. 0.


















Problem 27 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 212 212 152 0 0 0 0 0
normalized size 1 1. 0.72 0. 0. 0. 0. 0.
time (sec) N/A 0.529 0.202 0.671 0. 0. 0. 0.


















Problem 28 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 407 407 199 0 0 0 0 0
normalized size 1 1. 0.49 0. 0. 0. 0. 0.
time (sec) N/A 1.247 0.264 0.677 0. 0. 0. 0.


















Problem 29 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 386 381 220 0 0 0 0 0
normalized size 1 0.99 0.57 0. 0. 0. 0. 0.
time (sec) N/A 1.135 0.522 0.509 0. 0. 0. 0.


















Problem 30 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 267 267 161 0 0 0 0 0
normalized size 1 1. 0.6 0. 0. 0. 0. 0.
time (sec) N/A 0.675 0.304 0.54 0. 0. 0. 0.


















Problem 31 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 178 178 110 0 0 0 4129 0
normalized size 1 1. 0.62 0. 0. 0. 23.2 0.
time (sec) N/A 0.253 0.159 0.349 0. 0. 47.948 0.


















Problem 32 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F C F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 107 107 83 0 0 0 1897 0
normalized size 1 1. 0.78 0. 0. 0. 17.73 0.
time (sec) N/A 0.056 0.071 0.358 0. 0. 12.835 0.


















Problem 33 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 211 211 150 0 0 0 0 0
normalized size 1 1. 0.71 0. 0. 0. 0. 0.
time (sec) N/A 0.521 0.208 0.667 0. 0. 0. 0.


















Problem 34 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 315 315 209 0 0 0 0 0
normalized size 1 1. 0.66 0. 0. 0. 0. 0.
time (sec) N/A 1.097 0.317 0.716 0. 0. 0. 0.


















Problem 35 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 567 567 270 0 0 0 0 0
normalized size 1 1. 0.48 0. 0. 0. 0. 0.
time (sec) N/A 2.341 0.455 0.731 0. 0. 0. 0.


















Problem 36 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 322 322 172 0 0 0 0 0
normalized size 1 1. 0.53 0. 0. 0. 0. 0.
time (sec) N/A 0.557 0.28 0.542 0. 0. 0. 0.


















Problem 37 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 228 228 136 0 0 0 0 0
normalized size 1 1. 0.6 0. 0. 0. 0. 0.
time (sec) N/A 0.281 0.184 0.347 0. 0. 0. 0.


















Problem 38 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 112 112 83 0 0 0 0 0
normalized size 1 1. 0.74 0. 0. 0. 0. 0.
time (sec) N/A 0.056 0.073 0.366 0. 0. 0. 0.


















Problem 39 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 366 366 201 0 0 0 0 0
normalized size 1 1. 0.55 0. 0. 0. 0. 0.
time (sec) N/A 1.217 0.267 0.698 0. 0. 0. 0.


















Problem 40 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 482 482 271 0 0 0 0 0
normalized size 1 1. 0.56 0. 0. 0. 0. 0.
time (sec) N/A 2.071 0.463 0.678 0. 0. 0. 0.


















Problem 41 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 211 211 162 0 0 0 0 0
normalized size 1 1. 0.77 0. 0. 0. 0. 0.
time (sec) N/A 0.246 0.44 1.056 0. 0. 0. 0.


















Problem 42 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 271 255 164 0 0 0 0 0
normalized size 1 0.94 0.61 0. 0. 0. 0. 0.
time (sec) N/A 0.327 0.208 0.403 0. 0. 0. 0.


















Problem 43 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes NO TBD TBD TBD TBD TBD
size 164 164 138 0 0 0 0 0
normalized size 1 1. 0.84 0. 0. 0. 0. 0.
time (sec) N/A 0.179 0.252 0.676 0. 0. 0. 0.


















Problem 44 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes NO TBD TBD TBD TBD TBD
size 304 304 138 0 0 0 0 0
normalized size 1 1. 0.45 0. 0. 0. 0. 0.
time (sec) N/A 0.536 0.348 0.669 0. 0. 0. 0.


















Problem 45 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 139 139 124 0 0 0 0 0
normalized size 1 1. 0.89 0. 0. 0. 0. 0.
time (sec) N/A 0.115 0.155 0.795 0. 0. 0. 0.


















Problem 46 Optimal Rubi Mathematica Maple Maxima Fricas Sympy Giac









grade A A A F F F F(-1) F
verified N/A Yes Yes TBD TBD TBD TBD TBD
size 139 167 124 0 0 0 0 0
normalized size 1 1.2 0.89 0. 0. 0. 0. 0.
time (sec) N/A 0.118 0.052 0.8 0. 0. 0. 0.









2.3 Detailed conclusion table specific for Rubi results

The following table is specific to Rubi. It gives additional statistics for each integral. the column steps is the number of steps used by Rubi to obtain the antiderivative. The rules column is the number of unique rules used. The integrand size column is the leaf size of the integrand. Finally the ratio \(\frac{\text{number of rules}}{\text{integrand size}}\) is given. The larger this ratio is, the harder the integral was to solve. In this test, problem number [44] had the largest ratio of [ 0.1935 ]

Table 2.1Rubi specific breakdown of results for each integral














# grade
number of
steps
used
number of
unique
rules
normalized
antiderivative
leaf size
integrand
leaf size
\(\frac{\text{number of rules}}{\text{integrand leaf size}}\)







1 A 12 3 1. 29 0.103







2 A 10 3 1. 29 0.103







3 A 8 3 1. 27 0.111







4 A 6 3 1. 20 0.15







5 A 5 4 1. 29 0.138







6 A 3 3 1. 29 0.103







7 A 3 3 1. 29 0.103







8 A 14 3 1. 31 0.097







9 A 12 3 1. 31 0.097







10 A 10 3 1. 29 0.103







11 A 8 3 1. 22 0.136







12 A 7 4 1. 31 0.129







13 A 6 5 1. 31 0.161







14 A 4 3 1. 31 0.097







15 A 16 3 1. 31 0.097







16 A 14 3 1. 31 0.097







17 A 12 3 1. 29 0.103







18 A 10 3 1. 22 0.136







19 A 9 4 1. 31 0.129







20 A 8 5 0.99 31 0.161







21 A 11 4 1. 31 0.129







22 A 9 4 1. 31 0.129







23 A 7 4 1. 31 0.129







24 A 5 4 1. 29 0.138







25 A 2 2 1. 22 0.091







26 A 4 2 1. 31 0.065







27 A 5 3 1. 31 0.097







28 A 6 3 1. 31 0.097







29 A 8 5 0.99 31 0.161







30 A 6 5 1. 31 0.161







31 A 3 3 1. 29 0.103







32 A 2 2 1. 22 0.091







33 A 5 3 1. 31 0.097







34 A 6 3 1. 31 0.097







35 A 7 3 1. 31 0.097







36 A 4 3 1. 31 0.097







37 A 3 3 1. 29 0.103







38 A 2 2 1. 22 0.091







39 A 6 3 1. 31 0.097







40 A 7 3 1. 31 0.097







41 A 7 3 1. 31 0.097







42 A 4 4 0.94 29 0.138







43 A 6 5 1. 31 0.161







44 A 7 6 1. 31 0.194







45 A 4 4 1. 47 0.085







46 A 4 4 1.2 55 0.073