ODE
\[ n y(x)+x y''(x)+(1-x) y'(x)=0 \] ODE Classification
[_Laguerre]
Book solution method
TO DO
Mathematica ✓
cpu = 0.17031 (sec), leaf count = 21
\[\{\{y(x)\to c_1 U(-n,1,x)+c_2 L_n(x)\}\}\]
Maple ✓
cpu = 0.45 (sec), leaf count = 21
\[[y \left (x \right ) = \textit {\_C1} \KummerM \left (-n , 1, x\right )+\textit {\_C2} \KummerU \left (-n , 1, x\right )]\] Mathematica raw input
DSolve[n*y[x] + (1 - x)*y'[x] + x*y''[x] == 0,y[x],x]
Mathematica raw output
{{y[x] -> C[1]*HypergeometricU[-n, 1, x] + C[2]*LaguerreL[n, x]}}
Maple raw input
dsolve(x*diff(diff(y(x),x),x)+(1-x)*diff(y(x),x)+n*y(x) = 0, y(x))
Maple raw output
[y(x) = _C1*KummerM(-n,1,x)+_C2*KummerU(-n,1,x)]