`min()` Function in Python [ English ]

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1. Introduction

The min() function in Python is a built-in function used to find the smallest element among a group of values. It can be used with multiple values or with an iterable object such as a list, tuple, set, or string.

The function compares the values and returns the minimum (smallest) value.

It is commonly used in programs where we need to identify the lowest number, smallest item, or earliest value in a dataset.

2. Syntax

Syntax 1: Using multiple arguments

min(value1, value2, value3, ...)

Syntax 2: Using an iterable

min(iterable, key=None)

3. Parameters

1. value1, value2, ... Two or more values to compare.

2. iterable A sequence such as a list, tuple, or set whose smallest element needs to be found.

3. key (optional) A function used to customize the comparison.

4. Return Value

• Returns the smallest element among the given values or iterable.

5. Basic Example

print(min(10, 5, 20, 3))

Output

3

Explanation

• Among the numbers 10, 5, 20, and 3, the smallest value is 3.

6. Example with a List

numbers = [8, 2, 15, 4, 10]

print(min(numbers))

Output

2

Explanation

• The function checks all elements in the list and returns the smallest number.

7. Example with a Tuple

numbers = (12, 7, 25, 5)

print(min(numbers))

Output

5

Explanation

• The smallest value in the tuple is returned.

8. Example with a String

text = "python"

print(min(text))

Output

h

Explanation

• The characters are compared according to their ASCII values, and 'h' is the smallest.

9. Example Using key Parameter

words = ["apple", "banana", "kiwi", "cherry"]

print(min(words, key=len))

Output

kiwi

Explanation

• The key=len argument tells Python to compare words based on their length.
• "kiwi" has the smallest length.

10. Practical Example

marks = [85, 90, 78, 88]

lowest = min(marks)

print("Lowest Marks:", lowest)

Output

Lowest Marks: 78

Explanation

• The function finds the lowest mark from the list.

11. Summary

• min() is a built-in Python function used to find the smallest value.
• It can compare multiple values or elements of an iterable.
• It supports an optional key parameter for custom comparison.
• It works with numbers, strings, lists, tuples, and other iterable objects.