24.1 problem 663

Internal problem ID [3402]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 24
Problem number: 663.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, class G], _rational]

Solve \begin {gather*} \boxed {\left (1-x^{2} y^{2}\right ) y^{\prime }-x y^{3}=0} \end {gather*}

Solution by Maple

Time used: 0.015 (sec). Leaf size: 21

dsolve((1-x^2*y(x)^2)*diff(y(x),x) = x*y(x)^3,y(x), singsol=all)
 

\[ y \relax (x ) = {\mathrm e}^{-\frac {\LambertW \left (-x^{2} {\mathrm e}^{-2 c_{1}}\right )}{2}-c_{1}} \]

Solution by Mathematica

Time used: 60.087 (sec). Leaf size: 55

DSolve[(1-x^2 y[x]^2)y'[x]==x y[x]^3,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to -\frac {i \sqrt {\text {ProductLog}\left (-e^{-2 c_1} x^2\right )}}{x} \\ y(x)\to \frac {i \sqrt {\text {ProductLog}\left (-e^{-2 c_1} x^2\right )}}{x} \\ \end{align*}