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hi, everybody
I am s. kavin
today we gone a see functions.
Think of a function as a little helper in your code. It’s like a recipe that you can use over and over again.
1.Reusability
2.Organization
3.Avoiding Repetition
4.Simplifying Complex Problems
eg:
def celsius_to_fahrenheit(celsius): return (celsius * 9/5) + 32 celsius1 = 25 fahrenheit1 = celsius_to_fahrenheit(celsius1) print(f"{celsius1}°C is {fahrenheit1}°F") celsius2 = 30 fahrenheit2 = celsius_to_fahrenheit(celsius2) print(f"{celsius2}°C is {fahrenheit2}°F") celsius3 = 15 fahrenheit3 = celsius_to_fahrenheit(celsius3) print(f"{celsius3}°C is {fahrenheit3}°F")
1. Greet People
def greet(name): print(f"Hello, {name}!") greet("Alice") greet("Bob")
2. Adding Two Numbers
def add(a, b): return a + b result = add(5, 3) print(f"The sum is: {result}")
3. Checking if a Number is Even or Odd
def is_even(number): return number % 2 == 0 print(is_even(4)) # True print(is_even(7)) # False
04. Finding the maximum of Three numbers
def max_of_three(a, b, c): max = None if a > b: max = a else: max = b if max > c: return max else: return c
5. Calculating Factorial of a number
def factorial(n): if n == 0: return 1 else: return n * factorial(n - 1) print(factorial(5)) # 120
6. Calculating Area of a Circle
import math def area_of_circle(radius): return math.pi * radius ** 2 print(area_of_circle(5)) # 78.53981633974483
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