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RandomReal

RandomReal[]
gives a pseudorandom real number in the range 0 to 1.
RandomReal[{xmin, xmax}]
gives a pseudorandom real number in the range xmin to xmax.
RandomReal[xmax]
gives a pseudorandom real number in the range 0 to xmax.
RandomReal[range, n]
gives a list of n pseudorandom reals.
RandomReal[range, {n1, n2, ...}]
gives an n_1⨯n_2⨯… array of pseudorandom reals.
RandomReal[dist, ...]
samples from the symbolic continuous distribution dist.
  • RandomReal[spec, WorkingPrecision->n] yields reals with n-digit precision. Leading or trailing digits in the generated number can turn out to be 0.
  • RandomReal gives a different sequence of pseudorandom reals whenever you run Mathematica. You can start with a particular seed using SeedRandom.
  • A Method option to SeedRandom can be given to specify the pseudorandom generator used.
EXAMPLESCLOSE ALL
Basic Examples   (7)
A random real number in the range 0 to 1:
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A random real number in the range -10 to 10:
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A random real number in the range 0 to 10:
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A random real from a normal distribution with mean 0 and standard deviation 1:
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5 random reals in the range 0 to 1:
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A 3 ×2 array of random reals in the range -1 to 1:
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Random coordinates for 4 points in 3 dimensions:
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