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Mathematics 10 Online
OpenStudy (1018):

This is a matrix problem. tr(2e^T-D). I solved it already but what does the 'tr' mean in the problem?

ganeshie8 (ganeshie8):

`trace` is the sum of elements in principal diagonal

ganeshie8 (ganeshie8):

`a` b c d `e` f g h `i`

ganeshie8 (ganeshie8):

trace = `a` + `e` + `i`

OpenStudy (1018):

Yes. Thanks again mate!

ganeshie8 (ganeshie8):

yw :)

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