Python allows us to work with integers (type int) and floats (type float), two fundamental data types discussed in a previous blog post about Python Data Types.
Python Integers and floats are numerical representations, with the main difference being a floating number has a decimal point, and an integer does not.
The Python programming language will follow the math rule of PEMDAS. It will perform math functions by looking at the following:
P – Parenthesis
E – Exponent
M – Multiplication
D – Division (floor or integer)
A – Addition
S – Subtraction
Python can be used as a basic calculator. From your programs or the Python interpreter, you can treat it like a calculator using the following operators
+addition- This will add the two values (either integers or floats) together
-subtraction- This will subtract the two values (either integers or floats) together
*multiplication- This will multiply the two values (either integers or floats) together
/division, aka floating-point division- This will divide the two values (either integers or floats) together
- This will also return any remainder if there are any,
10/4 # Returns: 2.5- There is a concept called floor division (or integer) division in Python, which will not return the remainder, only the whole integer.
- This is represented with
// - Example:
10//4 # Returns: 2
- This is represented with
**To the power of- This will raise the integer or float to the power of
- You can square a number
4**.5 # Returns: 2.0
- or raise a number to a power of
4**2 #Returns: 16
%this is modulo, and it will return the remainder after division- You will see this if you use Python if statements to check if a number is divisible by another number.
- An example would be you want to see every number that 4 can go into evenly.
Link on floating-point numbers: https://docs.python.org/3/tutorial/floatingpoint.html.