Impara Use of if/else Statements in Python Functions

Everything we've discussed up to this point can be utilized within a function. For instance, you can easily embed conditional statements within the body of a function. In the third section, you crafted an if/else statement to determine if a number is odd or even. But, this code is set up for specific numbers.

If you wanted to evaluate a different number, you'd either have to replicate the same code block with a new number or modify the existing number before the conditional check. Instead, it's more efficient to encapsulate this code within a function and then invoke it for various numbers as needed.


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# Define a function
def is_odd(n):
  if n % 2 == 0:
    return "even"
  else:
    return "odd"

# Testing function
print('2 is', is_odd(2))
print('3 is', is_odd(3))

Note

Just a heads up: A number is deemed even if it divides by 2 with no remainder. The % operator is used to find this remainder.

Clearly, the function accurately recognizes 2 as even and 3 as odd. You can call upon this function as often as required for various numbers.

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Sezione 6. Capitolo 5

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              12345678910
            
# Define a function
def is_odd(n):
  if n % 2 == 0:
    return "even"
  else:
    return "odd"

# Testing function
print('2 is', is_odd(2))
print('3 is', is_odd(3))

Note

Just a heads up: A number is deemed even if it divides by 2 with no remainder. The % operator is used to find this remainder.

Clearly, the function accurately recognizes 2 as even and 3 as odd. You can call upon this function as often as required for various numbers.

Tutto è chiaro?

Grazie per i tuoi commenti!

Sezione 6. Capitolo 5