What is operator precedence in Python and why is it important?
Operator precedence in Python determines the order in which operations are evaluated in expressions. It's crucial because it affects the outcome of calculations.
Can you give me an example of how operator precedence works?
Sure! In the expression 3 + 4 * 2
, the multiplication is performed first due to higher precedence, resulting in 3 + 8
, which equals 11
.
What happens if I use parentheses?
Using parentheses changes the precedence. For example, in (3 + 4) * 2
, the addition is performed first, resulting in 7 * 2
, which equals 14
.
Are there any common mistakes related to operator precedence?
Yes, a common mistake is assuming addition and multiplication have the same precedence. This can lead to unexpected results in calculations.
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