A graph of the normalised Fresnel integrals, between 0 and 5:
${\displaystyle S(x)=\int _{0}^{x}\sin \left({\frac {\pi }{2}}t^{2}\right)dt}$

${\displaystyle C(x)=\int _{0}^{x}\cos \left({\frac {\pi }{2}}t^{2}\right)dt}$