Numbers (Integers, Floats)

Integers

Integers are whole nubers without a decimal point. They can be positive, negative, or zero.

Floats

Floats (floating-point numbers) are numbers that have a decimal point. They also can be positive, negative, or zero.

Performing Arithmetic Operations

As shown before Python can be used as a calculator to perform arithmetic operations. You can also perfom operations with integers and floats and once. The results wil be a float.

sum = 5 + 4.2
print(sum)
# Output: 9.2

Built-in Functions for Numeric Data

Python provides several built-in functions to manipulate numeric data. The type() function returns the data type of a variable.

# Check types
type(5)
# Output: <class 'int'>

type(3.14)
# Output: <class 'float'>

The int() function converts a float to an integer by truncating the decimal part.

# Convert float to integer
int_value = int(3.99)
# Output: 3

The float() function converts an integer to a float.

# Convert integer to float
float_value = float(7)
# Output: 7.0

However python handles the conversion between int and float automatic and you rarely need to handle it yourself.