Codecademy
codecademy.com › docs › python › math module › math.floor()
Python | Math Module | math.floor() | Codecademy
April 23, 2025 - ... The function rounds each number down to the nearest integer, so 5.8 becomes 5, 2.1 becomes 2, and 10.0 remains 10. This example shows how math.floor() behaves with negative numbers:
W3Schools
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Python math.floor() Method
Python Examples Python Compiler Python Exercises Python Quiz Python Challenges Python Server Python Syllabus Python Study Plan Python Interview Q&A Python Bootcamp Python Certificate Python Training ... # Import math library import math # Round numbers down to the nearest integer print(math.floor(0.6)) print(math.floor(1.4)) print(math.floor(5.3)) print(math.floor(-5.3)) print(math.floor(22.6)) print(math.floor(10.0)) Try it Yourself »
Why does round(0.5) = 0?
Specifically, because it uses the "ties to even" rounding rule (there is more than one rule allowed by the IEEE standard) as it's more fair statistically
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August 27, 2016Why not always use Math.round instead of Math.floor?
Well, they are two different functions, with two different uses. Math.floor() always rounds down to the nearest integer, while Math.round() will round up or down depending on what side of .5 the number falls on. So, the basic answer is that you use which one gets the result you expect.
When it comes to generating random numbers though, Math.floor() has a more even distribution than Math.round(). If you want to generate a random number between 0 and 2, take the following examples:
Math.floor(Math.random() * 3). Here, 0-0.999999 will give you 0, 1.0 to 1.999999 will give you 1, and 2.0 to 2.999999 will give you 2. Every number has a 33% chance of being the result.
Math.round(Math.random() * 2). Here, 0-0.499999 will give you 0, 0.5 to 1.499999 will give you 1, and 1.5 to 1.999999 will give you 2. Note that the range of numbers that lead to a 1 is twice as big as those that lead to 0 or 1. That is 25% chance of 0, 50% chance of 1, and 25% chance of 2.
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February 22, 2017Videos
Python
docs.python.org › 3 › library › math.html
math — Mathematical functions
3 weeks ago - Return the integer square root of the nonnegative integer n. This is the floor of the exact square root of n, or equivalently the greatest integer a such that a² ≤ n.
Tutorial Gateway
tutorialgateway.org › math-floor-in-python
math floor in Python
March 29, 2025 - The Value of 'a' after the floor function is: 0 The Value of -90.98 after the floor function is: -91 The Value of 45.05 after the floor function is: 45 The Value of 45.98 after the floor function is: 45 The Value of 'e' after the floor function is: -5 The Value of 'PI' after the floor function is: 3 First Value from List is: -23 Second Value from List is: 2 Third Value from List is: 9 First Value from List is: -3 Second Value from List is: 22 Third Value from List is: 22 · First, We imported the math library using the following statement.
Codecademy
codecademy.com › docs › python:numpy › math methods › .floor()
Python:NumPy | Math Methods | .floor() | Codecademy
May 14, 2025 - This example uses the .floor() ... explicitly use the out parameter to overwrite it. np.floor() rounds down to the nearest smallest integer (toward negative infinity). np.trunc() truncates the decimal part and rounds toward ...
GeeksforGeeks
geeksforgeeks.org › python › floor-ceil-function-python
floor() and ceil() function Python - GeeksforGeeks
Python’s math module provides many useful mathematical functions, including floor() and ceil(), which are commonly used for rounding numbers. floor(): Rounds a number down to the nearest integer. Example: floor() of 3.3 will be 3.
Published January 16, 2026
Tutorialspoint
tutorialspoint.com › python › number_floor.htm
Python math.floor() Method
August 8, 2019 - import math # This will import ... − · The floor value of x[ 0 ]: 15 The floor value of x[ 1 ]: 56 The floor value of x[ 2 ]: 76 The floor value of x[ 3 ]: 6 · We can implement this function in a lot of real-world applications of Python. For example, we can try to retrieve the integer part and decimal part of a fractional number...
GoLinuxCloud
golinuxcloud.com › home › python › python floor() function examples [beginners]
Python floor() function Examples [Beginners] | GoLinuxCloud
August 20, 2021 - In a similar way, we can provide a tuple containing different numbers and can iterate over it to apply the python math.floor() method to its elements. See the following example which uses for loop to iterate over python tuple.
Note.nkmk.me
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Round Up/Down Decimals in Python: math.floor, math.ceil | note.nkmk.me
January 15, 2024 - Convert a string to a number (int, float) in Python · print(int('10')) # 10 # print(int('10.123')) # ValueError: invalid literal for int() with base 10: '10.123' print(int('FF', 16)) # 255 ... Considering negative values, there are four ways to round up and down. ... print(math.floor(10.123)) # 10 print(math.floor(-10.123)) # -11 print(math.ceil(10.123)) # 11 print(math.ceil(-10.123)) # -10 print(int(10.123)) # 10 print(int(-10.123)) # -10 ... For example, you can define a custom function that rounds toward infinity as follows.
Scaler
scaler.com › home › topics › floor() function in python
floor() Function in Python - Scaler Topics
August 3, 2023 - In the following example given above, the math.floor() is used with the value -20.6 to get the outcome as -21, if the input is given as -22.6 we get the outcome as -23, if the input is -12.2 then the output will be -13 and subsequently displayed ...
PyTutorial
pytutorial.com › python-floor-function-guide-mathfloor-explained
PyTutorial | Python Floor Function Guide: math.floor() Explained
February 2, 2026 - Notice the last result. math.floor(-3.4) returns -4, not -3. This is the "down towards negative infinity" rule in action. Python has other ways to get integer values.
Upgrad
upgrad.com › home › blog › data science › floor function in python: the underrated trick!
Floor Function in Python: Definition, Uses & Examples
October 29, 2025 - When you call math.floor(x), Python follows this process: Convert the input Python first ensures that the input value x is a number (either an integer or a float). If it’s not numeric, it raises a TypeError. Mathematical check The function checks where the number lies between two integers. Example: For 5.9, it’s between 5 and 6.
Scaler
scaler.com › home › topics › math floor python
Math Floor Function in Python - Scaler Topics
May 4, 2023 - The math floor Python function returns an integer not greater than n when we pass any float value and returns the same integer when we pass any integer value, but it throws an error when we pass an infinite value or any string.
GeeksforGeeks
geeksforgeeks.org › python-math-floor-function
Python | math.floor() function - GeeksforGeeks
February 16, 2023 - It is commonly used for operations such as rounding numbers, working with trigonometric functions, performing logarithmic calculations, and more."Among these are two commonly used functions:floor() ... modf() function is an inbuilt function in Python that returns the fractional and integer parts of the number in a two-item tuple. Both parts have the same sign as the number. The integer part is returned as a float. Example:Pythonimport math # modf() function used with a positive number print("math.
Dot Net Perls
dotnetperls.com › math-floor-python
Python - math.floor Examples - Dot Net Perls
April 27, 2023 - Detail Floor does not round upon the value 100.9. Instead it always reduces the number to be less. import math # Some numbers to take floors of.
Career Karma
careerkarma.com › blog › python › python ceil and floor: a step-by-step guide
Python Ceil and Floor: A Step-By-Step Guide | Career Karma
January 28, 2024 - This makes it easier for us to understand the quantity of much coffee we have left. We could round down the quantity of a bean to its nearest whole number using the following code: import math quantity = 250.92 rounded = math.floor(quantity) ...
Initial Commit
initialcommit.com › blog › python-floor-function
A Detailed Look at the Python floor() Function
June 20, 2023 - For example: ... Here, you pass the float 6.253 into the Python floor() function, which returns the integer value 6. Note that you first had to import the math module in order to access the ...
W3Schools
w3schools.com › python › python_math.asp
Python Math
The math.sqrt() method for example, ... a number upwards to its nearest integer, and the math.floor() method rounds a number downwards to its nearest integer, and returns the result:...
CodeGym
codegym.cc › java blog › learning python › floor division in python
Floor Division in Python
April 14, 2025 - This method is especially useful if you need to apply floor division to a result of a regular division. import math result = math.floor(7 / 2) print(result) # Output: 3 · In this example, 7 / 2 produces 3.5, and math.floor(3.5) rounds it down to 3.
Top answer 1 of 3
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You will spot a difference when using floats:
>>> 1000.5//1
1000.0
>>> floor(1000.5)
1000
floor returns an integer. For most cases 1000 and 1000.0 are equivalent, but not always.
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math.floor(N)returns an int, andN // 1returns a float.>>> type(math.floor(-4.4)) <class 'int'> >>> type((-4.4) // 1) <class 'float'>Because of this
floor(nan)will raise ValueError whilenan // 1returns NaN (similar for ±inf.)>>> math.floor(math.nan) Traceback (most recent call last): File "<stdin>", line 1, in <module> ValueError: cannot convert float NaN to integer >>> math.nan // 1 nan
I don't think there are other differences when N is a float, since x//y is defined as ⌊x/y⌋.