CSPICE Routines: RPD

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CSPICE Routines: RPD_C

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RPD_C: Radians per degree

Abstract

   Return the number of radians per degree.

Required_Reading
```
   None.
```

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. 
```

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.
```
Exceptions
```
   Error free. 
```
Files
```
   None. 
```

Author_and_Institution

   W.L. Taber      (JPL) 
   I.M. Underwood  (JPL) 
   E.D. Wright     (JPL)

Literature_References
```
   None.
```

Version

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

Index_Entries
```
   radians per degree
```
Link to routine source

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