Intel® oneAPI Math Kernel Library Developer Reference - Fortran
Returns a random real number from a uniform distribution.
res = slaran (iseed)
res = dlaran (iseed)
The ?laran routine returns a random real number from a uniform (0,1) distribution. This routine uses a multiplicative congruential method with modulus 248 and multiplier 33952834046453. 48-bit integers are stored in four integer array elements with 12 bits per element. Hence the routine is portable across machines with integers of 32 bits or more.
INTEGER. Array, size 4. On entry, the seed of the random number generator. The array elements must be between 0 and 4095, and iseed(4) must be odd.
iseed |
INTEGER. On exit, the seed is updated. |
res |
REAL for slaran, DOUBLE PRECISION for dlaran, Random number. |