11.13 Problem number 766

\[ \int f^{x^n} x^m \, dx \]

Optimal antiderivative \[ -\frac {x^{1+m} \Gamma \left (\frac {1+m}{n}, -x^{n} \ln \left (f \right )\right ) \left (-x^{n} \ln \left (f \right )\right )^{-\frac {1+m}{n}}}{n} \]

command

int(f^(x^n)*x^m,x,method=_RETURNVERBOSE)

Maple 2022.1 output

method result size
meijerg \(\frac {\left (-1\right )^{-\frac {m}{n}-\frac {1}{n}} \ln \left (f \right )^{-\frac {m}{n}-\frac {1}{n}} \left (\frac {n \,x^{1+m} \left (-1\right )^{\frac {m}{n}+\frac {1}{n}} \ln \left (f \right )^{\frac {m}{n}+\frac {1}{n}} \left (x^{n} \ln \left (f \right ) n +m +n +1\right ) L_{-\frac {1+m}{n}}^{\left (\frac {1+m +n}{n}\right )}\left (x^{n} \ln \left (f \right )\right ) \Gamma \left (-\frac {1+m}{n}+1\right ) \Gamma \left (\frac {1+m +n}{n}+1\right )}{\left (1+m \right ) \left (1+m +n \right ) \Gamma \left (-\frac {1+m}{n}+\frac {1+m +n}{n}+1\right )}-\frac {\left (-1\right )^{\frac {m}{n}+\frac {1}{n}} n^{2} x^{1+m +n} \ln \left (f \right )^{1+\frac {m}{n}+\frac {1}{n}} L_{-\frac {1+m}{n}}^{\left (\frac {1+m +n}{n}+1\right )}\left (x^{n} \ln \left (f \right )\right ) \Gamma \left (-\frac {1+m}{n}+1\right ) \Gamma \left (\frac {1+m +n}{n}+1\right )}{\left (1+m \right ) \left (1+m +n \right ) \Gamma \left (-\frac {1+m}{n}+\frac {1+m +n}{n}+1\right )}\right )}{n}\) \(267\)

Maple 2021.1 output

\[ \int f^{x^{n}} x^{m}\, dx \]________________________________________________________________________________________