Last data update: 2014.03.03
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R: Trace of a Matrix
Trace of a Matrix
Description
Returns trace of a matrix.
Usage
tr(x)
Arguments
Details
The function tr computes the trace of a square matrix which
is the sum of the diagonal elements of the matrix under consideration.
References
Golub, van Loan, (1996);
Matrix Computations,
3rd edition. Johns Hopkins University Press.
Examples
## Create Pascal Matrix:
P = pascal(3)
P
## Trace:
tr(P)
Results
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