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The cursor waits in the Commands window and you can type the formula.



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You can compose formulas using the Elements pane. Open it with the menu <emph>View  Elements</emph> if it is not already open.



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If the Elements pane is open, use F6 to switch from the Commands window to the Elements pane and back.



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Elements pane



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Working with Limits



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<bookmark_value>limits;in sums/integrals</bookmark_value><bookmark_value>integral limits</bookmark_value>



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<variable id="limits"><link href="text/smath/guide/limits.xhp">Working with Limits</link></variable>



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How can I define the limits in a Sum or Integral formula?



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You want to insert a summation formula like "summation of s^k from k = 0 to n" at the cursor in a Writer text document.



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Choose <item type="menuitem">Insert  Object  Formula</item>.



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You see the Math input window and the Elements pane on the left.



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From the list on the upper part of the Elements pane, select the <emph>Operators</emph> item.



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In the lower part of the Elements pane, click the <emph>Sum</emph> icon.



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To enable lower and upper limits, click additionally the <emph>Upper and Lower Limits</emph> icon.



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In the input window, the first placeholder or marker is selected, and you can start to enter the lower limit:



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Press F4 to advance to the next marker, and enter the upper limit:



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Press F4 to advance to the next marker, and enter the summand:



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Now the formula is complete. Click into your text document outside the formula to leave the formula editor.



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In the same way, you can enter an Integral formula with limits. When you click an icon from the Elements pane, the assigned text command is inserted in the input window. If you know the text commands, you can enter the commands directly in the input window.



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Choose <item type="menuitem">Insert  Object  Formula</item>.

