Compute the trace of a matrix.

Syntax

t = trace(m)

Argument

Name

Description

m

A scalar or a matrix.

Output

Name

Description

t

The trace m (sum of the diagonal elements of m).

Example

Compute the trace of the matrix.

Syntax

t = trace([1,2;3,4])

Result

t = 5

See Also:

Diag

Sum