According to records, in

163 1

1998, Audley, a famous British mathematician, thought multiplication was a special form of addition, so he put the previous invention "

+

"turn

45

Angle, so by "

x

"There will be. 「

x

This paper not only explains the relationship between multiplication and addition, but also explains the method of multiplication.

/kloc-at the end of 0/7th century, the mathematician Leibniz thought ".

x

"and Latin letters"

x

Very similar, once opposed to use, so the symbol created by mathematician heriott was introduced? "To express the multiplication symbol. Leibniz also proposed to use "∩" to represent multiplication. This symbol is still used today, but now it is mainly used in "set theory" to represent intersection.

The origin of division

The division symbol "∫" used in division operation is called Rennes symbol because it was first used in an algebra book published by Swede Rennes in 1659. 1668, his book was translated into English and published, and this symbol is popular today.

1666, Leibniz used ":"as a division symbol for the first time in one of his papers "The Art of Combination", and it gradually became common, and now it is used in Germany, the former Soviet Union and other countries.

The symbol "⊙" has two meanings (except). First of all, the symbol represents the division in fractional form, with "?" Added the next one. ",respectively, represent the numerator denominator. Another way of saying it is that when expressed as a fraction, "is a symbol used to distinguish it from"-".

Leibniz, a famous German scientist, thinks that although the symbol "×" is widely used, it is easily confused with the unknown "X". Therefore, he advocated using the symbol ""instead. He also advocated using ":"instead of "symbol. However, these two symbols have not been realized so far.

Ps: People have been dead for so many years. Who knows the specific process? Maybe this is a dream.