Operators:
There are in general two types of operators: unary operators that operate on a single value or operand; and binary operators, that operate on two values or operands. The symbol "-", for illustration, is both the unary operator for negation and the binary operator for subtraction.
Here are some of the general operators which can be used with numeric expressions:
+ addition
- negation, subtraction
* multiplication
/ division (divided by e.g. 10/5 is 2)
\ division (divided into e.g. 5\10 is 2)
^ exponentiation (e.g., 5^2 is 25)