trunc(): integer part of a number

import math
print(math.trunc(34.56))   # 34
print(math.trunc(34.21))   # 34
print(math.trunc(34.99))   # 34
print(math.trunc(34))      # 34

import math
print(math.trunc(-34.11))   # -34
print(math.trunc(-34.99))   # -34
print(math.trunc(-34))      # -34

print(math.trunc(123456.789))  # Output: 123456

x = 45.67
print(math.trunc(x))  # Output: 45

Difference between trunc(), floor(), and ceil()

• trunc(): Simply removes the decimal part of the number, returning the integer portion. It does not round the number.

  import math
  print(math.trunc(3.9))  # Output: 3
  print(math.trunc(-3.9))  # Output: -3

• floor(): Rounds the number down to the nearest integer.

  print(math.floor(3.9))  # Output: 3
  print(math.floor(-3.9))  # Output: -4

• ceil(): Rounds the number up to the nearest integer.

  print(math.ceil(3.1))  # Output: 4
  print(math.ceil(-3.1))  # Output: -3

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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