CommandsfresnelSinOn this pagefresnelSin fresnelSin (x) The fresnelSin function returns the Fresnel sine function S(x). S(x)=∫0xsin(π2t2)dt.\displaystyle S(x)=\int_{0}^{x} \sin \left(\frac{\pi}{2} t^{2}\right) d t .S(x)=∫0xsin(2πt2)dt. See Also fresnelCos, fresnelCS References Abramowitz, M., and I.A. Stegun, "Handbook of Mathematical Functions", 446 pp., Dover, New York, 1972.