Promblem with integration

[Anders]

The closed form for int(sin(x^2)x,0,x) is the Fresnel integral S(x) function or just S(x).

S(x) is a variation of the Gauss error function (erf = int(e^-x^2)) and the imaginary error function (erfi = int(e^x^2)) that can be formulated in terms of erf(x) and erfi(x) with some complex math. However, S(x) is not supported on any handheld calculator that I am aware of. Given the limited flash memory on the Prime (or any calculator for that matter), I am not sure this is a top candidate to make it into the Prime's flash memory in some future release - there are many more important functions not yet implemented that have higher utility value. But if there is space then, sure go ahead. But implement erfi(x) first then S(C) and also the Fresnel integral C(x) function which is = int(cos(x^2)x,0,x).