Insert a Symbol or Special Character or Equation in Microsoft Word

in this video explained Insert a Symbol or Special Character or Equation in Microsoft Word.
1.On the Insert tab, in the Symbols group, click the arrow under Equation, and then click Insert New Equation.
2.Under Equation Tools, on the Design tab, in the Symbols group, click the More arrow.
3.Click the arrow next to the name of the symbol set, and then select the symbol set that you want to display.