Apply button lets you see the effect of possible changes before saving them. Defaults button returns the default values.
If you make any changes in Sizes dialog, the equation that is being edited will take the form according to the new settings. Other equations of the document will stay the same, if not edited after the font was changed.
Size can be set in percentage terms according to the full size. Then, any change of the full size leads to proportional change of all standard sizes. For example, if the full size is set to 12pt and subscript-superscript is 25%, then subscript will be 3pt lower than the text line of support (buttom of the most symbols). If the ful size is set to 10pt, subscript will be 2,5pt lower than the text line of support. To define size in percentage terms, type % sign after the number in the corresponding field.
When completed, the equation will appear in the document at current cursor position.
To edit an existing equation, double click over it. The equation size can be changed same as the size if graphic objects. First select the equation by clicking over it once. Then drag one of the black markers to the right positoin.
