| WCSLIB 7.11
    | 
Go to the source code of this file.
| Macros | |
| #define | PI 3.141592653589793238462643 | 
| #define | D2R PI/180.0 | 
| Degrees to radians conversion factor.  More... | |
| #define | R2D 180.0/PI | 
| Radians to degrees conversion factor.  More... | |
| #define | SQRT2 1.4142135623730950488 | 
| #define | SQRT2INV 1.0/SQRT2 | 
| #define | UNDEFINED 987654321.0e99 | 
| Value used to indicate an undefined quantity.  More... | |
| #define | undefined(value) (value == UNDEFINED) | 
| Macro used to test for an undefined quantity.  More... | |
Definition of mathematical constants used by WCSLIB.
| #define PI 3.141592653589793238462643 | 
| #define D2R PI/180.0 | 
Factor  to convert from degrees to radians.
 to convert from degrees to radians. 
| #define R2D 180.0/PI | 
Factor  to convert from radians to degrees.
 to convert from radians to degrees. 
| #define SQRT2 1.4142135623730950488 | 
 , used only by molset() (
, used only by molset() (MOL projection). 
| #define UNDEFINED 987654321.0e99 | 
Value used to indicate an undefined quantity (noting that NaNs cannot be used portably).
| #define undefined | ( | value | ) | (value == UNDEFINED) | 
Macro used to test for an undefined value.