1.623 problem 638

Internal problem ID [8113]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 638.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [_Laguerre]

\[ \boxed {2 t y^{\prime \prime }+\left (1-2 t \right ) y^{\prime }-y=0} \]

Solution by Maple

Time used: 0.015 (sec). Leaf size: 17

dsolve(2*t*diff(y(t),t$2)+(1-2*t)*diff(y(t),t)-y(t)=0,y(t), singsol=all)
 

\[ y \left (t \right ) = c_{1} {\mathrm e}^{t} \operatorname {erf}\left (\sqrt {t}\right )+c_{2} {\mathrm e}^{t} \]

Solution by Mathematica

Time used: 0.029 (sec). Leaf size: 21

DSolve[2*t*y''[t]+(1-2*t)*y'[t]-y[t]==0,y[t],t,IncludeSingularSolutions -> True]
 

\[ y(t)\to e^t \left (c_1-c_2 \Gamma \left (\frac {1}{2},t\right )\right ) \]