1.676 problem 691

Internal problem ID [8166]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 691.
ODE order: 2.
ODE degree: 1.

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

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

Solution by Maple

Time used: 0.015 (sec). Leaf size: 14

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

\[ y \left (x \right ) = x c_{1} +c_{2} \operatorname {Ei}_{1}\left (x \right ) x \]

Solution by Mathematica

Time used: 0.03 (sec). Leaf size: 17

DSolve[x^2*y''[x]-x*(1-x)*y'[x]+(1-x)*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to x (c_2 \operatorname {ExpIntegralEi}(-x)+c_1) \]