A series of video lessons on the Python Programming Language given by Khan Academy.
Defining a Factorial Function
Diagramming What Happens with a Function Call
Variable scope and function calls
Recursive Factorial Function
Introduction to recursion.
Comparing Iterative and Recursive Factorial Functions
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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