2.470   ODE No. 470

\[ x^3 y'(x)-x^2 y(x)+y(x) y'(x)^2=0 \] Mathematica : cpu = 0.595484 (sec), leaf count = 218

DSolve[-(x^2*y[x]) + x^3*Derivative[1][y][x] + y[x]*Derivative[1][y][x]^2 == 0,y[x],x]
 

\[\left \{\text {Solve}\left [\frac {\sqrt {x^6+4 x^2 y(x)^2} \log \left (\sqrt {x^4+4 y(x)^2}+x^2\right )}{2 x \sqrt {x^4+4 y(x)^2}}+\frac {1}{2} \left (1-\frac {\sqrt {x^6+4 x^2 y(x)^2}}{x \sqrt {x^4+4 y(x)^2}}\right ) \log (y(x))=c_1,y(x)\right ],\text {Solve}\left [\frac {1}{2} \left (\frac {\sqrt {x^6+4 x^2 y(x)^2}}{x \sqrt {x^4+4 y(x)^2}}+1\right ) \log (y(x))-\frac {\sqrt {x^6+4 x^2 y(x)^2} \log \left (\sqrt {x^4+4 y(x)^2}+x^2\right )}{2 x \sqrt {x^4+4 y(x)^2}}=c_1,y(x)\right ]\right \}\] Maple : cpu = 0.344 (sec), leaf count = 87

dsolve(y(x)*diff(y(x),x)^2+x^3*diff(y(x),x)-x^2*y(x) = 0,y(x))
 

\[y \left (x \right ) = -\frac {i x^{2}}{2}\]