Python supports unary operators for no change and negation, + and -, respectively; and binary arithmetic operators +, -, *, /, //, %, and **, for addition ...

Symbols are included to depict mathematical functions ... this standard is to establish a system of graphic symbols for displays that are used by plant operators for process measurement and control.

a mathematical operator that looks like an inverted uppercase delta. Inverting characters is a common way of inventing ...