38.1.4 problem 4

Internal problem ID [6421]
Book : Engineering Mathematics. By K. A. Stroud. 5th edition. Industrial press Inc. NY. 2001
Section : Program 24. First order differential equations. Test excercise 24. page 1067
Problem number : 4
Date solved : Sunday, March 30, 2025 at 10:55:16 AM
CAS classification : [_linear]

\begin{align*} x y^{\prime }-y&=x^{2} \end{align*}

✓ Maple. Time used: 0.001 (sec). Leaf size: 9

ode:=-y(x)+x*diff(y(x),x) = x^2; 
dsolve(ode,y(x), singsol=all);
 

\[ y = \left (x +c_1 \right ) x \]

✓ Mathematica. Time used: 0.028 (sec). Leaf size: 11

ode=x*D[y[x],x]-y[x]==x^2; 
ic={}; 
DSolve[{ode,ic},y[x],x,IncludeSingularSolutions->True]
 

\[ y(x)\to x (x+c_1) \]

✓ Sympy. Time used: 0.223 (sec). Leaf size: 7

from sympy import * 
x = symbols("x") 
y = Function("y") 
ode = Eq(-x**2 + x*Derivative(y(x), x) - y(x),0) 
ics = {} 
dsolve(ode,func=y(x),ics=ics)
 

\[ y{\left (x \right )} = x \left (C_{1} + x\right ) \]