|
WCSLIB 8.2.2
|
Go to the source code of this file.
Macros | |
| #define | PI 3.141592653589793238462643 |
| #define | D2R PI/180.0 |
| Degrees to radians conversion factor. | |
| #define | R2D 180.0/PI |
| Radians to degrees conversion factor. | |
| #define | SQRT2 1.4142135623730950488 |
| #define | SQRT2INV 1.0/SQRT2 |
| #define | UNDEFINED 987654321.0e99 |
| Value used to indicate an undefined quantity. | |
| #define | undefined(value) (value == UNDEFINED) |
| Macro used to test for an undefined quantity. | |
Definition of mathematical constants used by WCSLIB.
| #define PI 3.141592653589793238462643 |
| #define D2R PI/180.0 |
Degrees to radians conversion factor.
Factor 
| #define R2D 180.0/PI |
Radians to degrees conversion factor.
Factor 
| #define SQRT2 1.4142135623730950488 |

MOL projection).
| #define UNDEFINED 987654321.0e99 |
Value used to indicate an undefined quantity.
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 quantity.
Macro used to test for an undefined value.