Language Reference

TRACE Function

sums diagonal elements

TRACE( matrix)

where matrix is a numeric matrix or literal.

The TRACE function produces a single numeric value that is the sum of the diagonal elements of matrix. For example, the following statement produces the output shown:

  
    a=trace({5 2, 1 3});
 

  
                 A             1 row       1 col     (numeric) 
  
                                           8
 

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