rand

rand — random number generator

Calling sequence

rand(m1,m2,.. [,key])  
rand(x [, key])  
rand()  

rand(key)  
rand("seed" [,n])  
rand("info")

`mi`	: integers
`key`	: character string with value in `"uniform"`, `"normal"`
`x`	: a matrix. Only its dimensions are taken into account.

random matrix generator.

Without key argument the syntaxes below produce random matrices with the current random generator (default is "uniform")

`rand(m1,m2)`	is a random matrix of dimension `m1` by `m2`.
`rand(m1,m2,..,mn)`	is a random matrix of dimension `m1` by `m2`,.. by `mn`.
`rand(a)`	is a random matrix of same size as a. `rand(a)` is complex if `a` is a complex matrix
`rand() : with no arguments gives a scalar whose value changes`	each time it is referenced.

If present, the key argument allows to specifie an other random generator.

`rand('uniform')`	The current random generator is set to a uniform random number generator. Random numbers are uniformly distributed in the interval (0,1).
`rand('normal')`	The current random generator is set to a Gaussian (with mean 0 and variance 1) random number generator .
`str=rand('info')`	return the type of the default random generator ('uniform' or 'normal')

IT is possible to (re-)initialize the seed of the rand generator:

`rand('seed')`	returns the current value of the seed.
`rand('seed',n)`	puts the seed to `n`. (`n=0` at first call).



x=rand(10,10,'uniform')
rand('normal')
rand('info')
y=rand(x,'normal');
x=rand(2,2,2)