How do I use parentheses in Python expressions?
An example of an AI chatbot conversation about using parentheses in Python expressions.
How do I use parentheses in Python expressions?
Parentheses in Python are used to group expressions and control the order of operations. For example, in the expression (2 + 3) * 4, the parentheses ensure that 2 + 3 is calculated first.
Can you give me more examples of using parentheses?
Sure! For instance, in the expression (5 - 2) ** 2, the parentheses ensure that 5 - 2 is evaluated before the exponentiation.
What happens if I don't use parentheses?
If you don't use parentheses, Python follows the standard order of operations (PEMDAS/BODMAS). For example, 5 - 2 ** 2 would evaluate to 1, because exponentiation is performed before subtraction.
Are there any common mistakes to avoid with parentheses?
Yes, a common mistake is to misplace parentheses, which can lead to unexpected results. Always double-check your expressions to ensure they reflect your intended calculations.
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