isbanded

Determines if the input is a banded matrix.

Syntax

b = isbanded(x, lower, upper)

Inputs

x: The object to check.; Type: any input
lower: The number of lower diagonals.; Type: integer; Dimension: scalar
upper: The number of upper diagonals.; Type: integer; Dimension: scalar

Outputs

b: A logical 1 when x is a banded matrix, and 0 otherwise.; Type: Boolean

Example

m = diag(ones(1,10), 12, 10);
m(3, 7) = 1;
b = isbanded(m, 4, 3)

b = 1