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Random

As of Version 6.0, Random has been superseded by the functions RandomReal and RandomInteger.

Random[]
gives a uniformly distributed pseudorandom Real in the range 0 to 1.

Random[type, range]
gives a pseudorandom number of the specified type, lying in the specified range. Possible types are: Integer, Real and Complex. The default range is 0 to 1. You can give the range {min, max} explicitly; a range specification of max is equivalent to {0, max}.

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Random[Integer] gives 0 or 1 with probability .

Random[Complex] gives a pseudorandom complex number in the rectangle with corners 0 and 1+i.

Random[Complex, {z_min, z_max}] uses the rectangle defined by z_min and z_max.

Random[Real, range, n] generates a pseudorandom real number with n-digit precision. Both leading and trailing digits may be chosen as 0.

Random gives a different sequence of pseudorandom numbers whenever you run Mathematica. You can start Random with a particular seed using SeedRandom.