spzeros

Scilab Function
Last update : 28/06/2006

spzeros - sparse zero matrix

### Calling Sequence

  `sp=spzeros(nrows,ncols)`
  `sp=spzeros(A)`

### Parameters

- `nrows`: integer (number of rows)
- `ncols`: integer (number os columns)
- `A`: sparse matrix
- `sp`: sparse zero matrix

### Description

`sp=spzeros(nrows,ncols)` returns a sparse zero matrix `sp` with `nrows` rows, `ncols` columns. (Equivalent to `sparse([],[],[nrow,ncols])`)

`sp=spzeros(A)` returns a sparse zero matrix with same dimensions as `A`. If `[m,n]=size(A)`, `spzeros(m,n)` and `spzeros(A)` are equivalent. In particular `spzeros(3)` is not equivalent to `spzeros(3,3)`.

### Examples

    sum(spzeros(1000,1000))

### See Also

`sparse`, `full`, `eye`, `speye`, `spones`,