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Please note that the recommended version of Scilab is 6.1.1. This page might be outdated.
See the recommended documentation of this function

Справка Scilab >> Sparse Matrix > Sparse Matrix Manipulation > nnz

nnz

number of non zero entries in a matrix

Syntax

n=nnz(X)

Arguments

X

real or complex sparse (or full) matrix

n

integer, the number of non zero elements in X

Description

nnz counts the number of non zero entries in a sparse or full matrix

Examples

sp=sparse([1,2;4,5;3,10],[1,2,3]);
nnz(sp)
a=[1 0 0 0 2];
nnz(a)

See also

  • spget — retrieves entries of sparse matrix
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Last updated:
Tue Feb 14 15:13:25 CET 2017