init_zigexp init_zigexp_r zigexp zigexp_r

init_zigexp() void init_zigexp ( int  n ) Initialization for exponential random number generator (Ziggurat method) Purpose Initializes the exponential random number generator zigexp(). Parameters [in] n The number of rectangles used in Ziggurat method. n = 128 or 256 can be specified. (if other value is given, 256 will be assumed) Note init_zigexp() and init_zigexp_r() initialize the same rectangles shared by zigexp() and zigexp_r(). Reference Yatsuji Tetsuaki, "Probability distribution random number generation method" 2nd ed., Pleiades Publishing, 2019. (Japanese book)