Python Numbers

Numeric data can be divided into integer and real numbers. Integers can be positive or negative. Unlike many other programming languages, python does not have any upper bound on the size of the integer. The real numbers or fractional numbers are called floating point numbers in programming languages. The floating point number contains a decimal.

There are three numeric types in Python:

• int
• float
• complex

Let us look at an example

num1 = 2  #int
num2 = 3.5 #float
num3 = 3j #complex

Int

int (integer) represents the whole numbers (i.e, positive, negative, zero) without decimal

Example

a = 10
b = 646464564564564545454121245457844545454545
c = -123

print(type(a))
print(type(b))
print(type(c))

OUTPUT

<class 'int'>
<class 'int'>
<class 'int'>

Float

A float is a positive or negative number having decimals.

a = 3.20
b = 2.0
c = -65.23

print(type(a))
print(type(b))
print(type(c))

OUTPUT

<class 'float'>
<class 'float'>
<class 'float'>

Float can be an exponential number or a fraction.

a = 2.6E34
b = -12.7e10
c = 5.6E12

print(type(a))
print(type(b))
print(type(c))

OUTPUT

<class 'float'>
<class 'float'>
<class 'float'>

complex

A complex number is written with j (a + bj). Complex numbers are a combination of real and imaginary number

a is the real part

bj is the imaginary part

a = 1+2j
b = -2j
c = 2j

print(type(a))
print(type(b))
print(type(c))

OUTPUT

<class 'complex'>
<class 'complex'>
<class 'complex'>