#4 Learn to use Python math module
Math in python is so popular and it works extremely simply. Python interpreter acts as a simple calculator: you can type an expression at it and it will write the value. Expression syntax is straightforward: most popular operators +, -, * and / work just like in most other languages. Parentheses "(())" can be used for grouping.
Text tutorial (page under construction): http://pylessons.com/Python-3-basics-...
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