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` ,