learn-co-curriculum / cssi-4.4-python-math-operators

#Python Math Operations

#Objectives:

• Understand how math operators are used in python
• Understand the order of operations in python

#Motivation Like we saw when we were exploring the interpreter, Python supports the basic math operators you would expect (+, -, *, /) Anytime we see an equation in code, python will try to evaluate the expression.

Decimals or Floats

There are some caveats about fractions and decimals numbers. Sometimes you'd expect one thing, but python gives you another.

>>> 5/2
2

It turns out that python is trying to be your friend - when you give it integers, it wants to give you integers right back. When it gets a decimal or float it returns a decimal/float.

#Modulo % % is the remainder operator. When you divide a number, how many are left over?

>>> 1 % 3
1
>>> 2 % 3
2
>>> 3 % 3
0

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