1.28 problem Problem 40

Internal problem ID [12139]

Book: Differential equations and the calculus of variations by L. ElSGOLTS. MIR PUBLISHERS, MOSCOW, Third printing 1977.
Section: Chapter 1, First-Order Differential Equations. Problems page 88
Problem number: Problem 40.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_Riccati, _special]]

\[ \boxed {y^{\prime }+y^{2}=x} \] With initial conditions \begin {align*} [y \left (1\right ) = 0] \end {align*}

Solution by Maple

Time used: 0.125 (sec). Leaf size: 37

dsolve([diff(y(x),x)=x-y(x)^2,y(1) = 0],y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {\operatorname {AiryBi}\left (1, 1\right ) \operatorname {AiryAi}\left (1, x\right )-\operatorname {AiryBi}\left (1, x\right ) \operatorname {AiryAi}\left (1, 1\right )}{\operatorname {AiryBi}\left (1, 1\right ) \operatorname {AiryAi}\left (x \right )-\operatorname {AiryBi}\left (x \right ) \operatorname {AiryAi}\left (1, 1\right )} \]

Solution by Mathematica

Time used: 0.206 (sec). Leaf size: 229

DSolve[{y'[x]==x-y[x]^2,{y[1]==0}},y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {i \left (x^{3/2} \left (-\operatorname {BesselJ}\left (-\frac {4}{3},\frac {2 i}{3}\right )+i \operatorname {BesselJ}\left (-\frac {1}{3},\frac {2 i}{3}\right )+\operatorname {BesselJ}\left (\frac {2}{3},\frac {2 i}{3}\right )\right ) \operatorname {BesselJ}\left (-\frac {2}{3},\frac {2}{3} i x^{3/2}\right )+x^{3/2} \operatorname {BesselJ}\left (-\frac {2}{3},\frac {2 i}{3}\right ) \operatorname {BesselJ}\left (-\frac {4}{3},\frac {2}{3} i x^{3/2}\right )+\operatorname {BesselJ}\left (-\frac {2}{3},\frac {2 i}{3}\right ) \left (x^{3/2} \left (-\operatorname {BesselJ}\left (\frac {2}{3},\frac {2}{3} i x^{3/2}\right )\right )-i \operatorname {BesselJ}\left (-\frac {1}{3},\frac {2}{3} i x^{3/2}\right )\right )\right )}{x \left (2 \operatorname {BesselJ}\left (-\frac {2}{3},\frac {2 i}{3}\right ) \operatorname {BesselJ}\left (-\frac {1}{3},\frac {2}{3} i x^{3/2}\right )+\left (-\operatorname {BesselJ}\left (-\frac {4}{3},\frac {2 i}{3}\right )+i \operatorname {BesselJ}\left (-\frac {1}{3},\frac {2 i}{3}\right )+\operatorname {BesselJ}\left (\frac {2}{3},\frac {2 i}{3}\right )\right ) \operatorname {BesselJ}\left (\frac {1}{3},\frac {2}{3} i x^{3/2}\right )\right )} \]