Pinyin method. We can use the Sogou Pinyin input method to input the pinyin of the multiplication word, that is, Cheng, so that the X symbol will appear.
There is a more advanced and convenient method, that is, hold down the Alt key and input 02 15 in turn, and then release it, and the multiplication sign will be printed. Isn't it amazing?
If you operate in Word, you can directly click Insert → symbol in Word and click X. ..
If it's too much trouble, you can copy it directly from the internet, and it's also convenient to paste it when necessary.
163 1 year, the British mathematician William Oughtred used "x" to represent the multiplication of two numbers for the first time in his book ClavisMathematicae, which became more and more popular. In the letter 1698 to johann bernoulli on July 29th, Leibniz proposed to use the dot "x" to represent multiplication, in case "x" is confused with the letter "x". Why does the computer use * instead of multiplication sign? Asterisk * is usually placed in the upper left corner or upper right corner of related words, and takes up a single line when dividing different parts of the article as a symbol. In the computer, because "×" is easily confused with unknown X, it is not convenient to type, so * is used instead of multiplication sign.