Symbol  Format  Data 

*  Code Point 
U+002A 
TeX 
* 

SVG 
The * (asterisk) symbol has a variety of uses in math, depending on the context. In computing, the symbol is used to denote multiplication and typically appears in an expression like this:
2 * 3 = 6
In this case, the asterisk symbol indicates that the numbers and are being multiplied together.
Visually, the asterisk symbol is also used to represent the convolution operation. For the dedicated symbol for convolution see this page.
The times symbol represents the cross product operator. It is also common for the symbol to represent multiplication when it is first introduced.
The asterisk operator is used in math to denote convolution operations between functions or signals. It represents the convolution of two functions, a fundamental operation in signal processing, image processing, and applied mathematics.