<< full

Sparse type

nzmax >>

---

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

---

Version	Description
1.0.0	initial version

Author

---

Allan CORNET