Step 1: Check that Math Mode is selected in the upper toolbar.
The summation symbol should be selected, like this:
Step 2: Type your math equation. If the summation symbol is not selected automatically when you start typing math, do it manually.
Step 3: When you finish your equation hit 'enter' or click the equals button on the keyboard.
(If your problem still isn't solved, you may have stumbled across an issue that needs more attention. Please start a chat with a FastFig representative, or let us know through our community forums here.)
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