double MSfUnifRand (void)
void MSrandSeed (int seed)
Generate a uniformly distributed pseudo-random value
Reseed the uniform pseudo-random value
This routine generates uniformly distributed pseudo-random numbers. The
multiplicative congruential method is used to generate integer pseudo-random
numbers, is = (a*is) % m. The values a=16807 and m=2147483647 are used.
These values have been shown to give good results. Further, the values
generated are shuffled to give better serial correlation properties. The
pseudo-random number generation routine is self initializing, but if a
different sequence of pseudo-random values is desired, the routine MSrandSeed
can be used to supply a starting (seed) value.
W. H. Press, S. A. Teukolsky, W. T. Vetterling, B. P. Flannery,
"Numerical Recipes in C" (2nd ed.) (p. 280), Cambridge University Press,
<- double MSfUnifRand
Uniform deviate with values between 0 and 1, exclusive of the end points.
-> int seed
Seed value. A positive seed value sets the pseudo-random generation to a
new sequence. A zero value sets the actual seed to a value based on the
current time. The default sequence can be restarted by setting the seed
value to 12345.
Author / revision
/ Revision 1.18 2003/05/09
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