Task_8_number_functions.md

Task 8 - Number functions

Python offers several built-in helpers for numeric work, plus the math module for more advanced needs. See the full catalogue here: https://docs.python.org/3/library/math.html

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Quick demo

n = -42
print(abs(n))                # absolute value -> 42

print(pow(2, 3))             # exponentiation 2³ -> 8
print(round(3.14159, 2))     # round to 2 decimals -> 3.14

quotient, remainder = divmod(17, 5)
print(quotient, remainder)   # -> 3 2

import math
print(math.sqrt(16))         # square root -> 4.0
print(math.ceil(4.2))        # round up -> 5
print(math.floor(4.8))       # round down -> 4

Each call returns a new value. The original variable stays unchanged unless you assign the result back.

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Your exercise

1. Create a file called Task_8.py.
2. Add num = -15.5.
3. Print the absolute value of num.
4. Print num cubed (use pow(num, 3) or num ** 3).
5. Print num rounded to the nearest whole number.
6. import math and print both the ceil and floor of num.
7. Use divmod to show the quotient and remainder of 100 divided by 7.

Run the script and check that each result matches what you expect.