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

Version	📄 Description
1.0.0	initial version