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L1·Foundations

🔢Numbers & Operators

Arithmetic, integer vs float division, modulo.

mathintfloat//%**

§ 1Operators

+ - * / // % ** — plus, minus, times, true divide, floor divide, modulo, power.

§ 2True vs floor division

/ always returns float. // truncates toward negative infinity.

§ 3Precedence

** > unary - > * / // % > + -. Use parentheses when in doubt.

Example

1print(7 / 2)     # 3.5​
2print(7 // 2)    # 3​
3print(7 % 2)     # 1​
4print(2 ** 10)   # 1024​
5print(-7 // 2)   # -4  (floor!)​

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Checkpoint quiz

Question 1 / 3
What is 10 // 3?
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