Procedure

   rpd_c ( Radians per degree ) 

   SpiceDouble rpd_c ( void )

Abstract

   Return the number of radians per degree.

Required_Reading

   None.

Keywords

   CONSTANTS

Brief_I/O

   The function returns the number of radians per degree.

Detailed_Input

   None.

Detailed_Output

   The function returns the number of radians per degree: pi/180.
   The value of pi is determined by the ACOS function. That is,

      rpd = acos ( -1. ) / 180.

Parameters

   None.

Exceptions

   Error free.

Files

   None.

Particulars

   When the function is referenced, the value computed as shown
   above is returned.

Examples

   The code fragment below illustrates the use of rpd_c.

      /. Convert all angles to radians for output  ./

         clock *= rpd_c()
         cone  *= rpd_c()
         twist *= rpd_c()

Restrictions

   None.

Literature_References

   None.

Author_and_Institution

   J. Diaz del Rio     (ODC Space)
   E.D. Wright         (JPL)

Version

   -CSPICE Version 1.0.1, 02-JUN-2021 (JDR)

       Edited the header to comply with NAIF standard.

   -CSPICE Version 1.0.0, 08-FEB-1998 (EDW)

Index_Entries

   radians per degree