Linear Algebra, Spreadsheets.
achieved by adding -2 times row 1 of A1 to row 3 of A1 and storing the resulting matrix (with rows 2 and 3 unchanged) in A2. In terms of matrix multiplications, this is equivalent to assigning a value of -2 to the element at row 3 and column 1 of matrix M2, calculating M2⋅A1 and storing the result