math.h

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#ifndef GUM_MATH_H
#define GUM_MATH_H

#include <cmath>


#ifndef M_LOG2E
#  define M_LOG2E 1.4426950408889634074 /* log_2 e */
#endif

#ifndef M_PI
#  define M_PI 3.14159265358979323846
#endif

#ifndef M_LN2
#  define M_LN2 0.69314718055994530942 /* log_e 2 */
#endif

#ifndef GUM_LOG_SQRT_2PI   // std::log ( std::sqrt ( 2pi ) )
#  define GUM_LOG_SQRT_2PI .91893853320467274177
#endif

#endif /* GUM_MATH_H */