random randn >>

rand


Random Number.


Syntax


M = rand
M = rand(n)
M = rand(x1, x2, ... , xN)
M = rand(sz)
M = rand(x1, x2, ... , xN, classname)
M = rand(x1, x2, ... , xN, 'like', var)

Input argument


n

a variable: n-by-n matrix will be generated.

x1, x2, ... , xN

x1-by-...-by-xN values

classname

a string: 'single' or 'double'

var

a variable: single or double

Output argument


M

a matrix of random numbers.

Description


rand returns a matrix with random elements uniformly distributed on the interval [0, 1].

seed can be modified using rng.

The Mersenne Twister designers consider 5489 as default seed. Nelson uses 0 as default seed.

Bibliography


M. Matsumoto and T. Nishimura, Mersenne Twister: A 623-dimensionally equidistributed uniform pseudorandom number generator, ACM Trans. on Modeling and Computer Simulation Vol. 8, No. 1, pp. 3–30, January 1998

Examples


rng('default');
rand
rng('default');
rand

rng('default');
rand(6)

rng('default');
rand(3, 2, 3)

rng('default');
rand(3, 2, 'single')

rng('default');
v = single([3, 3]);
rand(3, 2, 'like', v)

See also


rng, randn, eye.

History


Version Description
1.0.0 initial version

Author


Allan CORNET

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