<< toeplitz

Elementary functions

triu >>

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tril

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Lower triangular part of matrix

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Syntax

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T = tril(M)

T = tril(M, k)

Input argument

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M

2D input matrix

k

Diagonals to include: integer real value

Output argument

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R

Lower Triangular Portions of Matrix

Description

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tril computes Lower Triangular Portions of Matrix.

R = tril(M, k) returns the elements on and above the kth diagonal of M.

Example

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x = [1+i,-i;i,2i];
r = tril(x)

See also

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diag, triu.

History

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Version	Description
1.0.0	initial version

Author

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Allan CORNET