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IMSL_FRESNEL_SINE

Syntax | Return Value | Arguments | Keywords | Discussion | Example | Version History

The IMSL_FRESNEL_SINE function evaluates the sine Fresnel integral.


Note
This routine requires an IDL Analyst license. For more information, contact your ITT Visual Information Solutions sales or technical support representative.

Syntax

Result = IMSL_FRESNEL_SINE(x [, /DOUBLE])

Return Value

The value of the sine Fresnel integral evaluated at x.

Arguments

x

Argument for which the function value is desired.

Keywords

DOUBLE

If present and nonzero, double precision is used.

Discussion

The sine Fresnel integral is defined to be:

Example

The Fresnel integral S(1.75) is evaluated. 

PRINT, IMSL_FRESNEL_SINE(1.75)  
     0.499385

Version History

6.4
Introduced

  IDL Online Help (March 06, 2007)