To create your own select Design Equation Ink Equation. Click Equation in the Symbols section. Follow the onscreen instructions.
To use a built-in formula select Design Equation.
Click the Insert tab from the ribbon. Select Equation Editor. Cant insert equation I have Microsoft Word 2019 I think it has the latest logo and I am trying to insert an equation but the equation button is grey and unclickable. If you need to use an equation add or write it in Word.