There are two symbols commonly used in multiplication, one is "X" and the other is ". X was first proposed by British mathematician orrett in 163 1 and initiated by British mathematician heriott.
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You can insert all mathematical symbols under the general application conditions of Microsoft Word. Taking Word20 10 and above software as an example, this paper introduces the operation method:
Open the Word20 10 document window, click the formula to which you want to add mathematical symbols, and position the insertion cursor at the target position.
On the Formula Tools/Design ribbon, in the Symbols group, click the Other button to open the Symbols panel. The Basic Mathematics symbol panel is displayed by default. Users can find the most commonly used mathematical symbols in the "Basic Mathematics" symbol panel. Similarly, Alt+4 1420 (that is, hold down Alt, press 4 1420 in turn (keypad), and finally release Alt and hit √.