👉 In computer science, a postfix notation is a way to write a postfix expression using postfix operators. It's similar to normal parentheses but with extra spaces around the operands and variables.
For example:
```
(2 + 3)
(4 / 5)
```
The operator precedence is as follows:
- Parentheses are evaluated before multiplication.
- Exponents are evaluated first, then division.
- Multiplication and division are evaluated from left to right.