Python numbers

Python has three types of numbers.

1. int
2. float
3. complex

Int¶

An integer is the number zero, a positive natural number or a negative integer with a minus sign.

num = 10

print(num)
print(type(num))

Float¶

Float is a positive or negative number, containing one or more decimals.

num = 12.5

print(num)
print(type(num))

Complex¶

Complex numbers are written with a "j" as the imaginary part

num = 12.5+2j

print(num)
print(type(num))

converting number types¶

we can convert from one type to another with the int(), float(), and complex() built-in functions.

• convert int to float

num_int = 10
num_float = float(num_int)
print(num_float)

• convert float to int

num_float = 25.4
num_int = float(num_float)
print(num_int)

• convert int to complex

num_int = 25
num_comp = complex(num_int)
print(num_comp)

find sum of two numbers¶

Let's write a program to find the sum of numbers

num1 = 10
num2 = 20

print(num1 + num2)