drand48 erand48 jrand48 lcong48 lrand48 mrand48 nrand48 seed48 srand48

erand48() double erand48 ( unsigned short  xseed[] ) 48 bit real random number in [0,1) (Linear congruential method) Purpose Generates 48 bit real random number in [0,1) by linear congruential method. Returns Generated 48 bit real random number in [0,1). Parameters [in,out] xseed[] Array xseed[3] [in] 48 bit (16 bit x 3) seed. [out] Updated 48 bit (16 bit x 3) seed. Note This routine is provided for Windows version.