Evaluates the cosine Fresnel integral.

Synopsis

#include <imsl.h>

float imsl_f_fresnel_integral_C (float x)

The type double function is imsl_d_fresnel_integral_C.

Required Arguments

float x   (Input)
Argument for which the function value is desired.

Return Value

The cosine Fresnel integral.

Description

The cosine Fresnel integral is defined to be

Example

The Fresnel integral C(1.75) is evaluated.

#include <imsl.h>

main()

{

        float   x = 1.75;

        float   ans;

        x = imsl_f_fresnel_integral_C (x);

        printf ("C(1.75) = %f\n", x);

}

Output

C(1.75) = 0.321935

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