| 1 | [[TOC]] |

| 2 | = <lol/math/constants.h> = |

| 3 | |

| 4 | View this file in the source browser: [browser:trunk/src/lol/math/constants.h] |

| 5 | |

| 6 | This header provides some commonly used constants. They are similar to the `M_PI`, `M_E` etc. variables provided by the `<math.h>` header except they have the `F_` prefix for “float”, `D_` for “double” and `LD_` for “long double”. |

| 7 | |

| 8 | == List of constants == |

| 9 | |

| 10 | Note that these constants also exist with increased precision. See the [wiki:doc/lol/math/real.h <lol/math/real.h>] header. |

| 11 | |

| 12 | || `F_PI` || `D_PI` || `LD_PI` || Archimede’s constant ''pi'' || |

| 13 | || `F_PI_2` || `D_PI_2` || `LD_PI_2` || ''pi'' divided by 2 || |

| 14 | || `F_PI_3` || `D_PI_3` || `LD_PI_3` || ''pi'' divided by 3 || |

| 15 | || `F_PI_4` || `D_PI_4` || `LD_PI_4` || ''pi'' divided by 4 || |

| 16 | || `F_1_PI` || `D_1_PI` || `LD_1_PI` || the reciprocal of ''pi'' || |

| 17 | || `F_2_PI` || `D_2_PI` || `LD_2_PI` || 2 divided by ''pi'' || |

| 18 | || `F_SQRT2` || `D_SQRT2` || `LD_SQRT2` || Pythagoras’ constant, the square root of 2 || |

| 19 | || `F_SQRT3` || `D_SQRT3` || `LD_SQRT3` || Theodorus’ constant, the square root of 3 || |

| 20 | || `F_SQRT1_2` || `D_SQRT1_2` || `LD_SQRT1_2` || the square root of 1/2 || |