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 it as default seed (0).

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

Author

Allan CORNET