71.3.1 problem 1 (A)

Internal problem ID [14351]
Book : Ordinary Differential Equations by Charles E. Roberts, Jr. CRC Press. 2010
Section : Chapter 2. The Initial Value Problem. Exercises 2.1, page 40
Problem number : 1 (A)
Date solved : Tuesday, January 28, 2025 at 06:27:24 AM
CAS classification : [_quadrature]

\begin{align*} y^{\prime }&=1-x \end{align*}

Solution by Maple

Time used: 0.001 (sec). Leaf size: 12

dsolve(diff(y(x),x)=1-x,y(x), singsol=all)
 
\[ y = -\frac {1}{2} x^{2}+x +c_{1} \]

Solution by Mathematica

Time used: 0.002 (sec). Leaf size: 16

DSolve[D[y[x],x]==1-x,y[x],x,IncludeSingularSolutions -> True]
 
\[ y(x)\to -\frac {x^2}{2}+x+c_1 \]