Linear Algebra, Spreadsheets.
obvious in the figure that we eliminated the first element of row 2 of A1 and that row 2 of A1 is -3 times row 1 of A added to row 2 of A. Fig. 2. Step 1 of the LU decomposition method. The next step is to eliminate element in row 3 and column 1 of A1 (that is, the value in cell F7). This can be