spEye¶
Purpose¶
Creates a sparse identity matrix.
Format¶
-
y =
spEye(n)¶ - Parameters
n (scalar) – order of identity matrix.
- Returns
y (n x n sparse matrix) – sparse identity matrix.
Examples¶
// Declare 'y' a sparse matrix
sparse matrix y;
// Create 3x3 sparse identity matrix
y = spEye(3);
y is now equal to:
1 0 1
0 1 0
0 0 1
Remarks¶
Since sparse matrices are strongly typed in GAUSS, y must be defined as
a sparse matrix before the call to spEye().
See also
Functions spCreate(), spOnes(), denseToSp()