Fresnel_c
Definition:
/math-683e48c04aa18819ddeeea04c3d26724.png "C = fresnel\_c(x)")
evaluates an approximation to the Fresnel Integral
/math-68a4d3218a44bf70dbad05f64bbba59b.png "C(x)=\int_0^x\cos \left( \frac \pi 2t^2\right)dt")
The function is based on Chebyshev expansions.
For more information please review the s20adc function in the NAG document.
Parameters:
- x (input, double)
- The argument x of the function.
- C (output, double)
- Approximation of the Fresnel Integral