1.51 problem 51

Internal problem ID [6342]

Book: Own collection of miscellaneous problems
Section: section 1.0
Problem number: 51.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _missing_y]]

Solve \begin {gather*} \boxed {t^{2} y^{\prime \prime }-2 y^{\prime }=0} \end {gather*}

Solution by Maple

Time used: 0.0 (sec). Leaf size: 26

dsolve(t^2*diff(y(t),t$2)-2*diff(y(t),t)=0,y(t), singsol=all)
 

\[ y \relax (t ) = c_{1}+\left ({\mathrm e}^{-\frac {2}{t}} t -2 \expIntegral \left (1, \frac {2}{t}\right )\right ) c_{2} \]

Solution by Mathematica

Time used: 0.026 (sec). Leaf size: 29

DSolve[t^2*y''[t]-2*y'[t]==0,y[t],t,IncludeSingularSolutions -> True]
 

\begin{align*} y(t)\to 2 c_1 \text {Ei}\left (-\frac {2}{t}\right )+c_1 e^{-2/t} t+c_2 \\ \end{align*}