1. press the "Alt key" of the keyboard with your left hand, and press the numbers "4, 1, 4, 2, 0" with your right hand in turn, and release your hands to type the "root sign".
2. Select "keypad" in the floating language bar on the desktop, select "mathematical symbol" in the keypad, and type "root sign" in the soft keyboard.
3. Click the Insert option on the toolbar in Execl or Word, click More in the Special Symbol option, and click Insert Character to find the Root Symbol.
The root sign is a mathematical symbol. The root sign is a symbol used to represent the root operation of a number or an algebra. If a_=b, then a is the n-th root of b or a is the 1/n power of b, and the n-th handwritten and printed characters are represented by, and the number of roots or algebraic expressions are written in the area surrounded by the left side of the symbol and the right side of the horizontal part above the symbol, which cannot be out of bounds.