Analysis: Sometimes there is no symbol "X" in the computer, so the multiplication sign is replaced by "*", so seeing "*" in mathematics means multiplication sign.

In addition, "*" can also be defined as a new operation symbol. For example, P*Q=(P+Q)/2 means that the operation of "*" is to find the average of p and q; P*Q=(P/2)+Q means that the specified "*" operation is the sum of half of p and q.

Extended data

* Other functions of:

1, usually used as a comment symbol.

2, used to represent the password, reflecting the number of characters that have been entered, and avoiding the password from being seen.

3. It can also be used as a symbolic expression on the Internet, such as *-* (halo).

4. It also means that some words or characters can't be displayed, or they don't meet the word review. If sensitive words are pornographic or reactionary, they will be blocked with this symbol.