math module in python

In this video you will learn about various functions of math module in python.

math module python

The math module is a built in module in python. It provides mathematical functions. To use its functions we have to import it. The commonly used methods of math module are as follows:

• fabs(): This methods removes – sign from a number and returns positive float equivalent of that number. Gives TypeError if we provide a parameter which is not a number.
import math
print(math.fabs(-2.3))#prints 2.3
print(math.fabs(-3))#prints 3.0
print(math.fabs("t"))#TypeError

• ceil(): This method rounds a number upwards to the nearest integer. If we provide a non-numeric parameter, it gives TypeError.
import math
print(math.ceil(2.3))#prints 3
print(math.ceil(-3.4))#prints -3
print(math.ceil("t"))#TypeError

• floor(): This method rounds a number downwards to the nearest integer.
import math
print(math.floor(2.3))#prints 2
print(math.floor(-3.4))#prints -4
print(math.floor("t"))#TypeError

• trunc() : Takes a number as argument and returns the truncated integer part.
import math
print(math.trunc(2.3))#prints 2
print(math.trunc(-3.4))#prints -3
print(math.trunc("t"))#TypeError

• factorial(): Returns the factorial value of a given number.
import math
print(math.factorial(3))#prints 6
print(math.factorial(-3.4))#ValueError
print(math.factorial("t"))#TypeError

• gcd() : This method returns the highest value that can divide two integers. This is known as greatest common divisor or highest common factor.
import math
print(math.gcd(2,12))#prints 2
print(math.gcd(0,12))#prints 12
print(math.gcd(0,0))#prints 0
print(math.gcd(3.5,4))#TypeError
print(math.gcd("t","a"))#TypeError

• sqrt() : This method returns square root of a given number.
import math
print(math.sqrt(4))#prints 2
print(math.sqrt(-4))#ValueError
print(math.sqrt("t"))#TypeError


The math module also provides several mathematical constants like pi, tau , e , nan, and inf etc.
The module also provides several methods like cos(), sin(), tan() , cosh(), sinh(), tanh(), exp(), log and many more.

For more details you can go to the following official python 3 documentation.
https://docs.python.org/3/library/math.html


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