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The Random function can have two or three arguments.  The usual application provides two arguments, so that Random(a,b) returns a uniformly distributed random number X such that a <=X<=b.  (Note that the RandG function returns a random number from a Gaussian distribution.)


If a third argument other than 0 is provided, it is used as a seed for the random number generator routines.  The argument should be an integer.  The random number generator will always return the same value if a constant value is provided for the seed, e.g.,




If the third argument is 0, EES will generate a random number and then use this number each time the equation is evaluated during the solving process.  Each new solving process will result in a different random number. 


Used within Functions and Procedures  with the 

Repeat Until or other logical expressions, the Random function can be used to implement Monte Carlo type calculations.



See also:  RandG


Mathematical Functions