Lines Matching refs:_log
45 from math import log as _log, exp as _exp, pi as _pi, e as _e, ceil as _ceil
60 LOG4 = _log(4.0)
61 SG_MAGICCONST = 1.0 + _log(4.5)
243 def _randbelow(self, n, _log=_log, int=int, _maxwidth=1L<<BPF,
260 k = int(1.00001 + _log(n-1, 2.0)) # 2**k > n-1 > 2**(k-2)
326 setsize += 4 ** _ceil(_log(k * 3, 4)) # table size for big sets
399 if zz <= -_log(u2):
432 return -_log(1.0 - self.random())/lambd
520 v = _log(u1/(1.0-u1))/ainv
524 if r + SG_MAGICCONST - 4.5*z >= 0.0 or r >= _log(z):
532 return -_log(u) * beta
545 x = -_log((b-p)/alpha)
589 g2rad = _sqrt(-2.0 * _log(1.0 - random()))
645 return alpha * pow(-_log(u), 1.0/beta)