nnz

Return the number of nonzero elements.

Syntax

  • v = nnz(M)

Input argument

  • M - a matrix: double or logical, sparse or not.

Output argument

  • v - a integer value.

Description

nnz returns the number of non zero elements in an matrix.

Example

I = [1 2 3]; J = [3 1 2]; V = [32 42 53]; sp = sparse(I, J, V, 5, 4, 10) size(sp) nnz(sp) nzmax(sp)

See also

sparse, nzmax.

History

VersionDescription
1.0.0initial version

Author

Allan CORNET