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Python Mathematical Function

Updated on Jan 07, 2020

Python has many inbuilt function.

Method Description
round(number[, ndigits])  rounds the number, you can also specify precision in the second argument
pow(a, b) Returns a raise to the power of b
abs(x) Return absolute value of x
max(x1, x2, ..., xn) Returns largest value among supplied arguments
min(x1, x2, ..., xn) Returns smallest value among supplied arguments

Below mentioned functions are in math module, so you need to import math module first, using the following line.

import math
Method Description
ceil(x) This function rounds the number up and returns its nearest integer
floor(x) This function rounds the down up and returns its nearest integer
sqrt(x) Returns the square root of the number
sin(x) Returns sin of x where x is in radian
cos(x) Returns cosine of x where x is in radian
tan(x) Returns tangent of x where x is in radian

Let's take some examples to understand better

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>>> abs(-22)               # Returns the absolute value
22
>>>
>>> max(9, 3, 12, 81)      # Returns the maximum number
81
>>>
>>> min(78, 99, 12, 32)    # Returns the minimum number
12
>>>
>>> pow(8, 2)              # can also be written as 8 ** 2
64
>>>
>>> pow(4.1, 3.2)          # can also be written as 4.1 ** 3.2
91.39203368671122
>>>
>>> round(5.32)            # Rounds to its nearest integer
5
>>>
>>> round(3.1456875712, 3) # Return number with 3 digits after decimal point
3.146

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>>> import math
>>> math.ceil(3.4123)
4
>>> math.floor(24.99231)
24

In next post we will learn how to generate random numbers in python.

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