1.14 problem 14

Internal problem ID [6647]

Book: Second order enumerated odes
Section: section 1
Problem number: 14.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _missing_x], _Liouville, [_2nd_order, _reducible, _mu_xy]]

Solve \begin {gather*} \boxed {y^{\prime \prime }+\left (y^{\prime }\right )^{2}=0} \end {gather*}

Solution by Maple

Time used: 0.078 (sec). Leaf size: 10

dsolve(diff(y(x),x$2)+diff(y(x),x)^2=0,y(x), singsol=all)
 

\[ y \relax (x ) = \ln \left (c_{1} x +c_{2}\right ) \]

Solution by Mathematica

Time used: 0.298 (sec). Leaf size: 15

DSolve[y''[x]+(y'[x])^2==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \log (x-c_1)+c_2 \\ \end{align*}