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BUILT-IN MATHEMATICA SYMBOL
RandomReal
RandomReal[]
gives a pseudorandom real number in the range 0 to 1.
RandomReal[{xmin, xmax}]
gives a pseudorandom real number in the range 
to 
.
RandomReal[xmax]
gives a pseudorandom real number in the range 0 to 
.
RandomReal[range, n]
gives a list of n pseudorandom reals.
RandomReal[range, {n1, n2, ...}]
gives an 
×
×... array of pseudorandom reals.
Details and Options
- RandomReal[{xmin, xmax}] chooses reals with a uniform probability distribution in the range
to 
. - 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.
Examplesopen all
Basic Examples (6)
A random real number in the range 0 to 1:
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A random real number in the range 
to 
:
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A random real number in the range 0 to 10:
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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 
to 
:
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Random coordinates for 4 points in 3 dimensions:
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New in 6
