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 matrix 
   y = 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)