When you type an equation see how to create different equations for more details at the end of it type the symbol Hash and then the number in a format that you prefer usually in the round brackets in parentheses. ToolsOptions General tab choose Inches from the Measurement. The arrow is pointing downward.
The unique format is using for a matrix equation.
Click the arrow next to the Equation button. Now if you want to insert an equation with automatic numbering in standard journalconference paper format just select the template you have made from the equation gallery and it will insert it into the document as desired. Find the Equation icon p. If you want to start equation numbering at a number other than 1 this can be accomplished by manually editing the field code to read.