Sha256: 1ced6dfeb8f5789e1433e7ff867a8072c3c0efbde14830162239eef4a828e7ba
Contents?: true
Size: 1.11 KB
Versions: 54
Compression:
Stored size: 1.11 KB
Contents
typedef scomplex dtype;
typedef float rtype;
#define cT numo_cSComplex
#define cRT numo_cSFloat
#define mTM numo_mSComplexMath
#include "complex_macro.h"
static inline bool c_nearly_eq(dtype x, dtype y) {
return c_abs(c_sub(x,y)) <= (c_abs(x)+c_abs(y))*FLT_EPSILON*2;
}
#ifdef SFMT_H
/* generates a random number on [0,1)-real-interval */
inline static dtype m_rand(dtype max)
{
dtype z;
REAL(z) = to_real2(gen_rand32()) * REAL(max);
IMAG(z) = to_real2(gen_rand32()) * IMAG(max);
return z;
}
/* generates random numbers from the normal distribution
using Box-Muller Transformation.
*/
inline static void m_rand_norm(dtype mu, rtype sigma, dtype *a0)
{
rtype x1, x2, w;
do {
x1 = to_real2(gen_rand32());
x1 = x1*2-1;
x2 = to_real2(gen_rand32());
x2 = x2*2-1;
w = x1 * x1 + x2 * x2;
} while (w>=1);
w = sqrt( (-2*log(w)) / w );
REAL(*a0) = x1*w * sigma + REAL(mu);
IMAG(*a0) = x2*w * sigma + IMAG(mu);
}
#endif
#define M_EPSILON rb_float_new(1.1920928955078125e-07)
#define M_MIN rb_float_new(1.1754943508222875e-38)
#define M_MAX rb_float_new(3.4028234663852886e+38)
Version data entries
54 entries across 31 versions & 2 rubygems