ran_arr_next ran_array ran_start ranf_arr_next ranf_array ranf_start

ranf_arr_next() double ranf_arr_next ( void  ) 53 bit real random number in [0,1) (Lagged Fibonacci method) Purpose Generates 53 bit real random number in [0,1) by Lagged Fibonacci method. ranf_arr_next() generates 1009 random numbers using ranf_array() and stores in the internal buffer, and returns only the first 100 of them in sequence. Returns Generated 53 bit real random number in [0,1). Reference D. E. Knuth, “The Art of Computer Programming Third Edition, Vol.2 / Seminumerical Algorithms”, Addison Wesley Longman (1998)