istriu

Checks if matrix is upper triangular.

Syntax

• tf = istriu(M)

Input argument

• M - a numeric array

Output argument

• tf - logical: result of 'istriu'.

Description

istriu returns an scalar logical if entry is upper triangular.

Example

A = eye(3, 3);
R = istriu(A)
R = istriu(A(:,1))

See also

isdiag, istril.

History

Author

Allan CORNET