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The *row( command multiplies a row of a matrix by a scalar factor and returns the result. It is an elementary row operation used in Gaussian Elimination.
[[1,2][3,4]] [[1 2] [3 4]] *row(10,Ans,1) [[10 20] [3 4 ]]
You can multiply columns instead of rows with the aid of the T (Transpose) command.
- ERR:INVALID DIM is thrown if the row argument isn't a valid row (is larger than the size of the matrix, or otherwise bad)