The IMSL_FRESNEL_COSINE function evaluates the cosine Fresnel integral.
This routine requires an IDL Advanced Math and Stats license. For more information, contact your sales or technical support representative.
The cosine Fresnel integral is defined to be:
Example
The Fresnel integral C(1.75) is evaluated.
PRINT, IMSL_FRESNEL_COSINE(1.75)
0.321935
Syntax
Result = IMSL_FRESNEL_COSINE(X [, /DOUBLE])
Return Value
The value of the cosine Fresnel integral evaluated at X.
Arguments
X
Argument for which the function value is desired.
Keywords
DOUBLE (optional)
If present and nonzero, double precision is used.
Version History
See Also
IMSL_FRESNEL_SINE