9 #ifndef _LIBALMATH_ALMATH_TOOLS_ALTRIGONOMETRY_H_
10 #define _LIBALMATH_ALMATH_TOOLS_ALTRIGONOMETRY_H_
15 static const float _4_PI_ = 12.56637056f;
16 static const float _2_PI_ = 6.28318528f;
17 static const float PI = 3.14159265358979323846f;
18 static const float PI_2 = 1.57079632679489661923f;
19 static const float PI_4 = 0.785398163397448309616f;
20 static const float TO_RAD = 0.017453292f;
21 static const float TO_DEG = 57.295779579f;
24 #endif // _LIBALMATH_ALMATH_TOOLS_ALTRIGONOMETRY_H_