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Random
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
 .
Random[Integer] gives 0 or 1 with probability  .
Random[Complex,
zmin
,
zmax
] gives a pseudorandom complex number in the rectangle defined by zmin and zmax.
Random[Real,
range
,
n
] generates an n-digit pseudorandom real number. 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.
See the Mathematica book: Section 1.1.3, Section 3.2.3.
See also Implementation NotesA.9.44.5MainBookLinkOldButtonDataA.9.44.5.
See also: $RandomState.
Related packages: Statistics`ContinuousDistributions`, Statistics`DiscreteDistributions`.
Further Examples
This generates a random integer in the range from 1 to 100.
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Here is a random real number in the range from 0 to 10.
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Here is a random real number in the range from 0 to 1.
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If you want to use a different distribution to generate random numbers, then you have to first load the package ContinuousDistributions.m.
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Then, to generate random numbers with a log normal distribution, for example,
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LogNormalDistribution[mu, sigma] represents the log-normal distribution with mean parameter mu and variance parameter sigma.
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If you need repeatable results, you can reseed the random number generator.
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THIS IS DOCUMENTATION FOR AN OBSOLETE PRODUCT. SEE THE DOCUMENTATION CENTER FOR THE LATEST INFORMATION. | |
