<< istril

Elementary functions

isvector >>

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istriu

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Checks if matrix is upper triangular.

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Syntax

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tf = istriu(M)

Input argument

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M

a numeric array

Output argument

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tf

logical: result of 'istriu'.

Description

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istriu returns an scalar logical if entry is upper triangular.

Example

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

See also

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isdiag, istril.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET