1 _
/ |_ / 5/8 | \
| gamma(5/8)* | | | -1/4|
| / 4\ 1 2 \3/2, 13/8 | /
| sin\x / dx = ----------------------------------
| 8*gamma(13/8)
/
0
$$-{{\Gamma\left({{1}\over{4}} , i\right)\,\sin \left({{\pi}\over{8}}
\right)}\over{8}}-{{\Gamma\left({{1}\over{4}} , -i\right)\,\sin
\left({{\pi}\over{8}}\right)}\over{8}}+{{\Gamma\left({{1}\over{4}}
\right)\,\sin \left({{\pi}\over{8}}\right)}\over{4}}-{{i\,\Gamma
\left({{1}\over{4}} , i\right)\,\cos \left({{\pi}\over{8}}\right)
}\over{8}}+{{i\,\Gamma\left({{1}\over{4}} , -i\right)\,\cos \left({{
\pi}\over{8}}\right)}\over{8}}$$