Why: Python Arithmetic, Comparison, Assignment, Identity, Membership & Logical Operators?

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The following video is from an online educational course produced by Mnemonic Academy that teaches the basics of Python programming using mnemonics, metaphors and the science of learning titled “Learn Python: Like a Bee Student”, taught by instructor Dylan Jorgensen

What is an operator?
- An operator is any symbol that represents an action.
- For example: “*” is an arithmetic operator that represents multiplication.
- There are lots of specific operators so we will just cover the groups in this video.

What are Arithmetic Operators?
- They are the same operations that you learned in elementary, and high school math. Addition, subtraction, multiplication and division being the most common.
- They also follow the traditional order of operations in python.

What is a comparison operator?
- These operators sit between two values and decide on the relationship between them.
- They are also called relational operators.
The double equals operator (==) is known as the equality operator and is asking if the objects referred to are equal on the surface level only (not in memory ID location, or our dog tag mnemonic) -
They can also be confused with the assignment operator for beginners so be careful.

What are assignment operators?
- Assignment operator insert new value to a variable.
We are already super familiar with this operator.

What are identity operators? (is)
- Identity operators compare the memory locations of two objects.
- “is” will return true only two variables point to the same object in memory. (as opposed to the equality operator that just looks for equal values)

What are membership operators?
- Membership operators test for membership in a group. This can apply to lists, dictionaries, strings, tuples, etc.

What are logical operators?
- Logical operators test basic Truth statements. Think of the words “and” and “or”
- For example, this statement is False
- - There is a prize behind door number 1 and door number 2
- This statement is True
- - There is a prize behind door number 1 or door number 2

Photos under creative commons licence are links to the original source from the Learn Python: E-Book. https://goo.gl/BAMwi6, https://goo.gl/K1xRFv, https://goo.gl/9k2MY3

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