Operation Manual

2) Select the first placeholder <?> before the word times in the Formula Editor and replace it
with the character 5. The formula in your document updates automatically.
3) Select the second placeholder <?> after the word times in the Formula Editor and replace
it with the character 4. The formula in your document updates automatically.
Tip
To move forward from one placeholder to the next placeholder in a formula, press the
F4 key. To move backward from one placeholder to the previous placeholder in a
formula, use the key combination Shift+F4.
NOTE
If necessary, you can prevent a formula in a document from updating automatically. Go
to View on the main menu bar and deselect AutoUpdate display. To then manually
update a formula, press F9 key or select View > Update on the main menu bar.
Example 2
You want to enter the formula
π ≃ 3.14159
where the value of pi is rounded to 5 decimal
places. You know the name of the Greek character (pi), but do not know the markup associated
with the Is Similar Or Equal symbol
≃
.
1) Make sure your cursor is flashing in the Formula Editor.
2) Enter %pi in the Formula Editor to enter the Greek character for pi (π).
3) Select the category Relations and symbol Is Similar Or Equal using one of the following
methods:
– In the Elements dialog, select the Relations icon and then select the Is Similar Or
Equal icon .
– In the Elements Dock, select Relations from the drop-down list and then select the Is
Similar Or Equal icon .
– Right-click in the Formula Editor and select Relations > a simeq b from the context
menu.
4) Delete the first placeholder <?> before the word simeq in the Formula Editor.
5) Select the second placeholder <?> after the word simeq in the Formula Editor and replace
it with the characters 3.14159. The formula
π ≃ 3.14159
now appears in your
document.
Editing formulas
How you edit a formula and switch into formula editing mode depends on whether the formula is in
Math or another LibreOffice module.
1) In Math, double-click on a formula element in the formula that appears in the Preview
window to select the formula element in the Formula Editor, or directly select a formula
element in the Formula Editor.
2) In Writer, Calc, Impress, or Draw, double-click on the formula, or right-click on the formula
and select Edit form the context menu, to open the Formula Editor and enter editing mode.
The cursor is positioned at the start of the formula in the Formula Editor.
NOTE
If you cannot select a formula element using your cursor, click on the Formula Cursor
icon in the Tools toolbar to activate the formula cursor.
Chapter 1 Creating & Editing Formulas | 23