randn

Normally distributed random number.

Syntax

• M = randn
• M = randn(n)
• M = randn(x1, x2, ... , xN)
• M = randn(sz)
• M = randn(x1, x2, ... , xN, classname)
• M = randn(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

randn returns a matrix with normally distributed random elements having zero mean and variance one.

By default, randn uses the ziggurat algorithm implemented by Boost.

seed can be modified using rng.

Examples

rng('default');
randn
rng('default');
randn

rng('default');
randn(6)

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

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

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

See also

rng, randn, eye.

History

Author

Allan CORNET