oo / | | 1 | ------ dx | 3 | x + 1 | / 3
Integral(1/(x^3 + 1), (x, 3, oo))
/ ___ \ / ___ |2*\/ 3 *(-1/2 + x)| | / 2 \ \/ 3 *atan|------------------| | 1 log\1 + x - x/ log(1 + x) \ 3 / | ------ dx = C - --------------- + ---------- + ------------------------------ | 3 6 3 3 | x + 1 | /
/ / pi*I\ / 5*pi*I\\ | -2*pi*I | ----| 2*pi*I | ------|| | / pi*I\ ------- | 3 | ------ | 3 || | | e | 3 | e | 3 | e || | 2*log|1 - -----| 2*e *log|1 - -----| 2*e *log|1 - -------|| | \ 3 / \ 3 / \ 3 /| |- ---------------- - ------------------------- - --------------------------|*Gamma(2/3) \ 3 3 3 / ---------------------------------------------------------------------------------------- 3*Gamma(5/3)
=
/ / pi*I\ / 5*pi*I\\ | -2*pi*I | ----| 2*pi*I | ------|| | / pi*I\ ------- | 3 | ------ | 3 || | | e | 3 | e | 3 | e || | 2*log|1 - -----| 2*e *log|1 - -----| 2*e *log|1 - -------|| | \ 3 / \ 3 / \ 3 /| |- ---------------- - ------------------------- - --------------------------|*Gamma(2/3) \ 3 3 3 / ---------------------------------------------------------------------------------------- 3*Gamma(5/3)
(-2*log(1 - exp_polar(pi*i)/3)/3 - 2*exp(-2*pi*i/3)*log(1 - exp_polar(pi*i/3)/3)/3 - 2*exp(2*pi*i/3)*log(1 - exp_polar(5*pi*i/3)/3)/3)*gamma(2/3)/(3*gamma(5/3))
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.