Numbers

Numbers

The first basic data type we’ll cover are numbers

There are a two different “types” of numbers in python:

• Integers - positive or negative whole numbers.
• Float - real numbers, but also can contain decimal points

Here are some Examples

Integers

1
57
2020

Floats

6.5
2.7e10 # Scientific Notation
3.14159265

These are the 3 most basic number data types in Python. We can also perform different mathematical operations with these numbers too!

Number Operators

Like in math, Python allows us to do various operations with these numbers

Here’s a list of the operators:

• Addition (+)
• Subtraction (-)
• Multiplication (*)
• Division (/)
• Exponentiation (**)
• Modulo (%)

Again, here are some examples

Addition

# + Adds numbers
2 + 2 # equals 4
56 + 44 # equals 100
243.132 + 584 # equals 827.132

Subtraction

# - Subtracts numbers
10 - 7 # equals 3
0.5 - 0.3 # equals 0.2
345 - 543 # equals -198

Multiplication

# * Multiplies numbers
2 * 2 # equals 4
3.1415 * 2 # equals ‭6.283‬
-3 * 6 #equals -18

Division

# / Divides numbers
8 / 4 # equals 2
10 / 2 # equals 5
3 / 4 # equals 0.75

Division can also used with 2 slashes to perform a floor division

# // Divides then Floors numbers
3 // 4 # equals 0
9 // 2 # equals 4
100 // 3 # equals 33

Exponentiation

# ** Exponentiates numbers
4 ** 4 # equals 256
5 ** 2 # equals 25
2.5 ** 3 # equals 15.625

Modulo

# % returns the Remainder of the numbers when divided
5 % 2 # equals 1
35 % 5 # equals 0
100 % 7 # equals 2

Final Note

Python also supports typical order of operations, PEMDAS. Python will read from left to right and follow the following convention:

1. Parenthesis
2. Exponents
3. Multiplication and/or Division
4. Addition and/or Subtraction