<p class="Paragraph">Here we show an example of how you can input a matrix formula, without going into the significance of the matrix functions.</p>
<p class="Paragraph">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.</p>
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<p class="P2">Using the mouse, select the range C1:C10, in which the results are to be displayed.</p>
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<p class="P2">Press (F2) or click in the input line of the Formula bar.</p>
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<p class="P2">Enter an equal sign (=).</p>
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<p class="P2">Select the range A1:A10, which contains the first values for the sum formula.</p>
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<p class="P2">Press the (+) key from the numerical keypad.</p>
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<p class="P2">Now, select the numbers in the second column in cells B1:B10.</p>
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<p class="P2">End the input with the matrix key combination: (Shift)<help:switch select="System" xmlns:help="http://openoffice.org/2000/help"><help:case select="MAC">(Command)</help:case><help:default>(Ctrl)</help:default></help:switch>(Enter).</p>
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<p class="Paragraph">The matrix area is automatically protected against modifications, such as deleting rows or columns. It is, however, possible to edit the formatting, e.g. the cell background.</p>