1.19 problem 19

Internal problem ID [6582]

Book: First order enumerated odes
Section: section 1
Problem number: 19.
ODE order: 1.
ODE degree: 1.

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

Solve \begin {gather*} \boxed {c y^{\prime }-x a -b y^{2}=0} \end {gather*}

Solution by Maple

Time used: 0.005 (sec). Leaf size: 75

dsolve(c*diff(y(x),x)=a*x+b*y(x)^2,y(x), singsol=all)
 

\[ y \relax (x ) = \frac {\left (\frac {b a}{c^{2}}\right )^{\frac {1}{3}} \left (\AiryAi \left (1, -\left (\frac {b a}{c^{2}}\right )^{\frac {1}{3}} x \right ) c_{1}+\AiryBi \left (1, -\left (\frac {b a}{c^{2}}\right )^{\frac {1}{3}} x \right )\right ) c}{b \left (c_{1} \AiryAi \left (-\left (\frac {b a}{c^{2}}\right )^{\frac {1}{3}} x \right )+\AiryBi \left (-\left (\frac {b a}{c^{2}}\right )^{\frac {1}{3}} x \right )\right )} \]

Solution by Mathematica

Time used: 0.189 (sec). Leaf size: 214

DSolve[c*y'[x]==a*x+b*y[x]^2,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {\sqrt {x} \sqrt {\frac {a}{c}} \left (-J_{-\frac {2}{3}}\left (\frac {2}{3} \sqrt {\frac {a}{c}} \sqrt {\frac {b}{c}} x^{3/2}\right )+c_1 J_{\frac {2}{3}}\left (\frac {2}{3} \sqrt {\frac {a}{c}} \sqrt {\frac {b}{c}} x^{3/2}\right )\right )}{\sqrt {\frac {b}{c}} \left (J_{\frac {1}{3}}\left (\frac {2}{3} \sqrt {\frac {a}{c}} \sqrt {\frac {b}{c}} x^{3/2}\right )+c_1 J_{-\frac {1}{3}}\left (\frac {2}{3} \sqrt {\frac {a}{c}} \sqrt {\frac {b}{c}} x^{3/2}\right )\right )} \\ y(x)\to \frac {a x^2 \, _0\tilde {F}_1\left (;\frac {5}{3};-\frac {a b x^3}{9 c^2}\right )}{3 c \, _0\tilde {F}_1\left (;\frac {2}{3};-\frac {a b x^3}{9 c^2}\right )} \\ \end{align*}