What are the rules to write mathematical operators?

The rules to write mathematical operators are as follows:

1. There must be an operator between two operands.
   For example, to multiply A and B, we need to write A * B.

2. Zero raised to the power of any number is insignificant.
   For example, 0 ^ 4.

3. Division by zero is an invalid statement.
   For example, 8 / 0.