Arithmetic Operators
Python Arithmetic Operators are pretty standard.
Arithmetic Operators
- + : Addition
- – : Subtraction
- * : Multiplication
- / : Division
- //: Integer Division (Return divisor: 5/2 = 2)
- % : Modulus (returns the remainder of a division problem: 5%2=1)
- ** : Exponent (4**2 = 16)
Try your code in our online Python console:
Relational Operators
Relational operators compare values and return a Boolean result (Boolean means 2 states, in this case True or False). Note when using relational operators, == is equal to. A single = is used to set a variable value, not to compare two values
> Greater than
< Less Than
== Equal to
!= not equal
>= or <= greater than or equal, less than or equal
Try your code in our online Python console:
Variables
Variables are a way of holding values in a program. You take a unique character string and you can assign values to it, and use the string throughout your program. Variables in Python are pretty straight forward. Unlike other programming languages, you do not need to define the variables first. Python dynamically assigns the data type.
Three main rules:
- Variables must start with a letter or _
- Variables are case sensitive
- Avoid using command keywords (print, def, for)
notice lowercase ‘a‘ returns an error
Remember, Jupyter notebooks only return the last command. If you want both variables, use the print command
You can perform arithmetic functions on variables
And of course, variables can hold strings as well
Try your code in our online Python console:
Last Lesson: Install Python and Hello World
Next Lesson: Print Variables and User Input
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This is a great demonstration of python variables and arithemtic operators! Thank you for the post!
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