## SPARSE Construct a Sparse Matrix

Section: Sparse Matrix Support

### Usage

Creates a sparse matrix using one of several formats. The first creates a sparse matrix from a full matrixy = sparse(x).

The second form creates a sparse matrix containing all zeros
that is of the specified size (the sparse equivalent of
`zeros`

).

y = sparse(m,n)

where `m`

and `n`

are integers. Just like the `zeros`

function,
the sparse matrix returned is of type `float`

. The third form
constructs a sparse matrix from the IJV syntax. It has two forms. The
first version autosizes the sparse matrix

y = sparse(i,j,v)

while the second version uses an explicit size specification

y = sparse(i,j,v,m,n)