R = sprandn(S)
R = sprandn(m,n,density)R = sprandn(m
R = sprandn(S)has the same sparsity structure as
S, but normally distributed random entries with mean 0 and variance 1.
R = sprandn(m,n,density) is a random,
n, sparse matrix with approximately
n normally distributed nonzero entries
(0 <= density <= 1).
R = sprandn(m,n,density,rc) also has reciprocal condition number approximately equal to
R is constructed from a sum of matrices of rank one.
rc is a vector of length
rc as its first
lr singular values, all others are zero. In this case,
R is generated by random plane rotations applied to a diagonal matrix with the given singular values. It has a great deal of topological and algebraic structure.
(c) Copyright 1994 by The MathWorks, Inc.