Zhenhua Wu wrote:
I want to know how to number the equations.
Create a displayed equation and use the shortcut "M-m n" or the menu "Edit -> Math - > Numbering" to toggle the numbering on/off (the cursor must be inside the formula).
You don't need to label a formula to number it.To number only some lines of a multiline formula, use "M-m N" or the menu "Edit -> Math - > Line Numbering".
regards Uwe