PHP预定义数学常数

2024-04-25 04:38:03 326

定义和用法

不变值描述M_PI3.14159265358979323846皮我2.7182818284590452354欧拉数eM_LOG2E1.4426950408889634074日志₂eM_LOG10E0.43429448190325182765日志₁₀eM_LN20.69314718055994530942记录_e2M_LN102.30258509299404568402记录_e10M_PI_21.57079632679489661923pi/2M_PI_40.78539816339744830962pi/4M_1_PI0.318309886183790671541/人M_2_PI0.636619772367581343082/点M_SQRTPI1.77245385090551602729sqrt(pi)M_2_SQRTPI1.128379167095512573902/平方公尺M_SQRT21.41421356237309504880sqrt(2)M_SQRT31.73205080756887729352平方(3)M_SQRT1_20.707106781186547524401/平方(2)M_LNPI1.14472988584940017414日志_e(pi)M_EULER0.57721566490153286061欧拉常数PHP_ROUND_HALF_UP1减半PHP_ROUND_HALF_DOWN2减半PHP_ROUND_HALF_EVEN3将一半舍入为偶数PHP_ROUND_HALF_ODD4将一半舍入到奇数南南不是数字INFINF无穷

PHP预定义数学常数

定义和用法

热门推荐

随机推荐