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# Entering Matrix Formulas

The following is an example of how you can enter a matrix formula, without going into the details of matrix functions.

Assume you have entered 10 numbers in Columns A and B (A1:A10 and B1:B10), and would like to calculate the sum of each row in Column C.

1. Using the mouse, select the range C1:C10, in which the results are to be displayed.

2. Press F2, or click in the input line of the Formula bar.

3. Enter an equal sign (=).

4. Select the range A1:A10, which contains the first values for the sum formula.

5. Press the (+) key from the numerical keypad.

6. Select the numbers in the second column in cells B1:B10.

7. End the input with the matrix key combination: Shift+Command Ctrl+Enter.

The matrix area is automatically protected against modifications, such as deleting rows or columns. It is, however, possible to edit any formatting, such as the cell background.

Related Topics

Calculating With Formulas

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