<p class="Paragraph"><help:paragraphinfo state="U" number="14" xmlns:help="http://openoffice.org/2000/help"/>The following is an example of how you can enter a matrix formula, without going into the details of <text:s text:c="" xmlns:text="http://openoffice.org/2000/text"/>matrix functions.</p>
<p class="Paragraph"><help:paragraphinfo state="U" number="15" xmlns:help="http://openoffice.org/2000/help"/>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"><help:paragraphinfo state="U" number="16" xmlns:help="http://openoffice.org/2000/help"/>Using the mouse, select the range C1:C10, in which the results are to be displayed.</p>
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<p class="P2"><help:paragraphinfo state="U" number="17" xmlns:help="http://openoffice.org/2000/help"/>Press F2, or click in the input line of the Formula bar.</p>
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<p class="P2"><help:paragraphinfo state="U" number="18" xmlns:help="http://openoffice.org/2000/help"/>Enter an equal sign (=).</p>
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<p class="P2"><help:paragraphinfo state="U" number="19" xmlns:help="http://openoffice.org/2000/help"/>Select the range A1:A10, which contains the first values for the sum formula.</p>
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<p class="P2"><help:paragraphinfo state="U" number="20" xmlns:help="http://openoffice.org/2000/help"/>Press the (+) key from the numerical keypad.</p>
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<p class="P2"><help:paragraphinfo state="U" number="21" xmlns:help="http://openoffice.org/2000/help"/>Select the numbers in the second column in cells B1:B10.</p>
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<p class="P2"><help:paragraphinfo state="U" number="22" xmlns:help="http://openoffice.org/2000/help"/>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"><help:paragraphinfo state="U" number="23" xmlns:help="http://openoffice.org/2000/help"/>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.</p>