oo / | | sinc(x)*cos(a*x) dx | / -oo
Integral(sinc(x)*cos(a*x), (x, -oo, oo))
/ / | | | sinc(x)*cos(a*x) dx = C + | cos(a*x)*sinc(x) dx | | / /
/ // 1 \ | || 0 for ---- < 1| | || | 2| | | || |a | | | || | | || | 2| | |pi*|< a for |a | < 1| | || | | || / | 1 \ | | || __1, 1 |1/2 0 | --------------| | | ||/__ | | 2 | otherwise | | ||\_|2, 2 \ 0 -1/2 | polar_lift (a)/ | < \\ / / 1 \ |-------------------------------------------------------- for And|2*|arg(a)| = 0, -- != 1| | a | 2 | | \ a / | | oo | / | | | | cos(a*x)*sinc(x) dx otherwise | | | / | -oo \
=
/ // 1 \ | || 0 for ---- < 1| | || | 2| | | || |a | | | || | | || | 2| | |pi*|< a for |a | < 1| | || | | || / | 1 \ | | || __1, 1 |1/2 0 | --------------| | | ||/__ | | 2 | otherwise | | ||\_|2, 2 \ 0 -1/2 | polar_lift (a)/ | < \\ / / 1 \ |-------------------------------------------------------- for And|2*|arg(a)| = 0, -- != 1| | a | 2 | | \ a / | | oo | / | | | | cos(a*x)*sinc(x) dx otherwise | | | / | -oo \
Piecewise((pi*Piecewise((0, 1/|a^2| < 1), (a, |a^2| < 1), (meijerg(((1/2,), (0,)), ((0,), (-1/2,)), polar_lift(a)^(-2)), True))/a, (Ne(a^(-2), 1))∧(2*Abs(arg(a)) = 0)), (Integral(cos(a*x)*sinc(x), (x, -oo, oo)), True))
Estos ejemplos se pueden aplicar para introducción de los límites de integración inferior y superior.