pi / | | /x\ | sin|-| | \2/ | ------*sign(x) dx | 2 | / -pi
Integral((sin(x/2)/2)*sign(x), (x, -pi, pi))
/ | / | /x\ | | sign(x)*sin|-| dx | /x\ | \2/ | sin|-| | | \2/ / | ------*sign(x) dx = C + -------------------- | 2 2 | /
Use the examples entering the upper and lower limits of integration.