In Python, there are three numeric data types.
Int, Float, Complex
number_int = 100
number_float = 100.111
number_complex = 100j
print(number_int)
print(number_float)
print(number_complex)
100
100.111
100j
Int - Int or integer is a whole positive or negative number without a decimal point. The length of an integer number is unlimited.
number_a = 100
number_b = 123123451234561234567
number_c = -12312345
print(number_a)
print(number_b)
print(number_c)
100
123123451234561234567
-12312345
Float - A float is either a positive or a negative decimal point number.
number_a = 100.111
number_b = 100.0
number_c = -100.222
print(number_a)
print(number_b)
print(number_c)
100.111
100.0
-100.222
There is also the possibility of floating numbers with an "e" to indicate a power of 10.
number_a = 80E2
number_b = 10e3
number_c = -55.8e3
print(number_a)
print(number_b)
print(number_c)
8000.0
10000.0
-55800.0
Complex - The complex number in Python is always written as a numeric value with a "j" text character.
In this case, the numeric value is the real part, and the number with the character "j" is the imaginary part.
number_a = 1+7j
number_b = 7j
number_c = -10j
print(number_a)
print(number_b)
print(number_c)
(1+7j)
7j
(-0-10j)
number_a = 1+7j
number_b = 7j
number_c = -10j
print(type(number_a))
print(type(number_b))
print(type(number_c))
<'class' 'complex'>
<'class' 'complex'>
<'class' 'complex'>
number_int = 100
number_float = 100.111
number_complex = 100j
number_a = float(number_int)
number_b = int(number_float)
number_c = complex(number_int)
print(number_a)
print(number_b)
print(number_c)
print(type(number_a))
print(type(number_b))
print(type(number_c))
100.0
100
(100+0j)
<'class' 'float'>
<'class' 'int'>
<'class' 'complex'>