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,fill) 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