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Python Tutorial

Math operations

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Python has support for both mathematical operations and functions.

Mathematical operations An overview of operations:

Mathematical functions Python supports a wide variety of mathematical functions.

Operation Result
x + y sum of x and y.
x * y multiplication of x and y.
x - y difference of x and y.
x / y division of x by y.
x % y remainder of x/y
x ** y x to the power of y
abs(x) absolute value of x
sqrt(x) square root of x

Tip You can use the Python interpreter as calculator. To do so you simply start Python without an IDE and filename. Example: 
  Python 2.7.6 (default, Jun 22 2015, 17:58:13) 
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> 18*17
306
>>> 2**4
16
>>>
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Function Returns Example
abs(x) Returns the absolute value of x. 

x = -35
x = abs(x)
print(x)
cmp(x,y) Returns -1 if x < y
Returns 0 if x equals to y
Returns 1 if x > y. 
x = 6
y = 4
print( cmp(x,y) )
exp(x) Returns the exponential of x 

import math
x = 6
print( math.exp(x) )
log(x) The natural logarithm of x 

import math
x = 6
print( math.log(x) )
log10(x) The base-10 logarithm of x 

import math
x = 6
print( math.log10(x) )
pow(x,y) The result of x**y 
import math
x = 6
print( math.pow(x,2) )
sqrt(x) The square root of x 
import math
x = 6
print( math.sqrt(x) )