Internal problem ID [5792]
Book: A course in Ordinary Differential Equations. by Stephen A. Wirkus, Randall J. Swift. CRC
Press NY. 2015. 2nd Edition
Section: Chapter 8. Series Methods. section 8.2. The Power Series Method. Problems Page
603
Problem number: 1. direct method.
ODE order: 1.
ODE degree: 1.
CAS Maple gives this as type [[_Riccati, _special]]
Solve \begin {gather*} \boxed {y^{\prime }-y^{2}+x=0} \end {gather*} With initial conditions \begin {align*} [y \relax (0) = 1] \end {align*}
✓ Solution by Maple
Time used: 0.203 (sec). Leaf size: 87
dsolve([diff(y(x),x)=y(x)^2-x,y(0) = 1],y(x), singsol=all)
\[ y \relax (x ) = \frac {\left (-3 \AiryBi \left (1, x\right ) 3^{\frac {1}{6}}-3 \AiryAi \left (1, x\right ) 3^{\frac {2}{3}}\right ) \Gamma \left (\frac {2}{3}\right )^{2}+2 \pi \left (\AiryBi \left (1, x\right ) 3^{\frac {1}{3}}-3^{\frac {5}{6}} \AiryAi \left (1, x\right )\right )}{\left (3 \AiryAi \relax (x ) 3^{\frac {2}{3}}+3 \AiryBi \relax (x ) 3^{\frac {1}{6}}\right ) \Gamma \left (\frac {2}{3}\right )^{2}-2 \pi \left (3^{\frac {1}{3}} \AiryBi \relax (x )-3^{\frac {5}{6}} \AiryAi \relax (x )\right )} \]
✓ Solution by Mathematica
Time used: 9.957 (sec). Leaf size: 109
DSolve[{y'[x]==y[x]^2-x,{y[0]==1}},y[x],x,IncludeSingularSolutions -> True]
\begin{align*} y(x)\to -\frac {i \sqrt {x} \left (\text {Gamma}\left (\frac {1}{3}\right ) J_{-\frac {2}{3}}\left (\frac {2}{3} i x^{3/2}\right )+\sqrt [3]{-3} \text {Gamma}\left (\frac {2}{3}\right ) J_{\frac {2}{3}}\left (\frac {2}{3} i x^{3/2}\right )\right )}{\text {Gamma}\left (\frac {1}{3}\right ) J_{\frac {1}{3}}\left (\frac {2}{3} i x^{3/2}\right )-\sqrt [3]{-3} \text {Gamma}\left (\frac {2}{3}\right ) J_{-\frac {1}{3}}\left (\frac {2}{3} i x^{3/2}\right )} \\ \end{align*}