>>> 3/2
1.5
>>> 3//2 # floor
1
>>> -(-3//2) # ceil
2
GeeksforGeeks
geeksforgeeks.org › python › floor-ceil-function-python
floor() and ceil() function Python - GeeksforGeeks
Example: floor() of 3.3 will be 3. ceil(): Rounds a number up to the nearest integer. Example: ceil() of 3.3 will be 4. Note: Both functions require importing the math module: import math ...
Published January 16, 2026
Naukri
naukri.com › code360 › library › ceil-and-floor-in-python
ceil() and floor() in Python - Naukri Code 360
August 22, 2025 - Almost there... just a few more seconds
Ceil and floor equivalent in Python 3 without Math module? - Stack Overflow
I need to ceil and floor 3/2 result (1.5) without using import math. ... OK, here is the problem: to sum all numbers 15 + 45 + 15 + 45 + 15 ... with N items. ... Believe me, I tried. BTW I used PHP before, now I'm learning Python :) More on stackoverflow.com
Why do Python's math.ceil() and math.floor() operations return floats instead of integers? - Stack Overflow
Why would .ceil and .floor return floats when they are by definition supposed to calculate integers? ... Well this got some very good arguments as to why they should return floats, and I was just getting used to the idea, when @jcollado pointed out that they in fact do return ints in Python 3... More on stackoverflow.com
what is the difference between using math.ceil and round for rounding the decimal ?
ceil always rounds up. More on reddit.com
3
2
October 10, 2022Floor and ceil function in python - Stack Overflow
I want to round up a float value to an integer in python to multiple of five. say 3.6 to 10 or 21.3 to 25 More on stackoverflow.com
Videos
Python ceil and floor Functions | Round Your Numbers Up Or Down ...
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Python - Ceil() Floor() Math Method Code Practice - YouTube
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Python ceil() , floor() and round() functions| Python Math Functions| ...
00:50
ceil( ) and floor( ) functions in python math library - YouTube
W3Schools
w3schools.com › python › ref_math_ceil.asp
Python math.ceil() Method
# Import math library import math ... print(math.ceil(10.0)) Try it Yourself » · The math.ceil() method rounds a number UP to the nearest integer, if necessary, and returns the result....
Analytics Vidhya
analyticsvidhya.com › home › understanding floor and ceiling functions in python
Floor and Ceiling Functions in Python | Applications and Behaviour
June 20, 2023 - This leads to the rather amazing result relating sums of the floor function of multiples of to the continued fraction of by · The smallest integer bigger than or equal to ⌈x⌉ is the result of the ceil function, denoted by ceil(x) or x. A given ...
Note.nkmk.me
note.nkmk.me › home › python
Round Up/Down Decimals in Python: math.floor, math.ceil
January 15, 2024 - In Python, math.floor() and math.ceil() are used to round down and up floating point numbers (float). Round down (= take the floor): math.floor() Round up (= take the ceiling): math.ceil() Difference ...
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
December 1, 2023 - Certifications: Compared ... The Python ceil() function rounds a number up to the nearest integer, or whole number. Python floor() rounds decimals down to the nearest whole number.
Medium
medium.com › @kevingxyz › the-art-of-pythons-ceiling-and-floor-notation-684d4d354e1e
The Art of Python’s Ceiling and Floor using Operator | by Kevin | Medium
August 8, 2020 - In Python, the floor function rounds the value towards negative infinity. By playing on this principle, you will realize that by taking the negative of negative floor, can do something like this: ... In the above code, you will be getting 4. ...
Top answer 1 of 5
88
>>> 3/2
1.5
>>> 3//2 # floor
1
>>> -(-3//2) # ceil
2
2 of 5
14
Try
def ceil(n):
return int(-1 * n // 1 * -1)
def floor(n):
return int(n // 1)
I used int() to make the values integer. As ceiling and floor are a type of rounding, I thought integer is the appropriate type to return.
The integer division //, goes to the next whole number to the left on the number line. Therefore by using -1, I switch the direction around to get the ceiling, then use another * -1 to return to the original sign. The math is done from left to right.
Top answer 1 of 9
121
As pointed out by other answers, in python they return floats probably because of historical reasons to prevent overflow problems. However, they return integers in python 3.
>>> import math
>>> type(math.floor(3.1))
<class 'int'>
>>> type(math.ceil(3.1))
<class 'int'>
You can find more information in PEP 3141.
2 of 9
108
The range of floating point numbers usually exceeds the range of integers. By returning a floating point value, the functions can return a sensible value for input values that lie outside the representable range of integers.
Consider: If floor() returned an integer, what should floor(1.0e30) return?
Now, while Python's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
GeeksforGeeks
geeksforgeeks.org › python › ceil-and-floor-of-the-dataframe-in-pandas-python-round-up-and-truncate
Ceil and floor of the dataframe in Pandas Python – Round up and Truncate - GeeksforGeeks
July 15, 2025 - # using np.ceil to round to # nearest greater integer for # 'Marks' df['Marks'] = df['Marks'].apply(np.ceil) df ... We can get the floor value using the floor() function. Floor() is basically used to truncate the values.
TechGeekBuzz
techgeekbuzz.com › blog › floor-and-ceil-function-in-python
floor() and ceil() function in Python - Techgeekbuzz
There are two math methods, namely math module .ceil() and .floor(), that are used to round floating numbers to integers and whole numbers in Python . While working with Python, you will be using these two methods often.
Python
docs.python.org › 3 › library › math.html
math — Mathematical functions
3 weeks ago - Added in version 3.8. ... Return the ceiling of x, the smallest integer greater than or equal to x. If x is not a float, delegates to x.__ceil__, which should return an Integral value.
Tutorialspoint
tutorialspoint.com › python › number_ceil.htm
Python math.ceil() Method
The Python math.ceil() method is used to find the nearest greater integer of a numeric value. For example, the ceil value of the floating-point number 3.6 is 4. The process involved is almost similar to the estimation or rounding off technique.
Top answer 1 of 8
11
Yes, because the Math.random() can generate any number in range [0, 1), there's this edge case where the random number is 0.
Math.ceil(0) = 0
Math.floor(0) + 1 = 1
This is reason why we need to use Math.floor() + 1 instead of Math.ceil() here, when rolling a dice, you never ever supposed to get a 0 as outcome.
2 of 8
2
You could use Math.ceil( Math.random() * 5 ) + 1 as well as Math.floor( Math.random() * 6 ) + 1
Python documentation
docs.python.org › 3 › library › functions.html
Built-in Functions — Python 3.14.3 documentation
2 weeks ago - With mixed operand types, the rules for binary arithmetic operators apply. For integers, the result is the same as (a // b, a % b). For floating-point numbers the result is (q, a % b), where q is usually math.floor(a / b) but may be 1 less than that.
CodeChef
codechef.com › roadmap › cpp-dsa
C++ DSA Roadmap – Learn Data Structures & Algorithms
Begin your journey into C++ data structures and algorithms with this comprehensive roadmap. Start with basic constructs—such as arrays, strings, stacks, and queues—then progress into advanced topics like trees, graphs, dynamic programming, and bit manipulation.
Scaler
scaler.com › home › topics › math floor python
Math Floor Function in Python - Scaler Topics
May 4, 2023 - Tip: For rounding up the number to the nearest integer, we can use math.ceil() function. We have many ways to use the math floor Python. First, we can simply import the math module using import math, and then we can use the math floor Python function by writing math.floor().
Brainly
brainly.in › computer science › secondary school
Floor and ceil in python - Brainly.in
March 18, 2023 - In Python, the math module provides two functions floor() and ceil() that can be used to find the floor and ceiling of a number.