Defining a Factorial Function

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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-kindergarten-math/cc-kindergarten-counting/kindergarten-comparing-numbers/v/comparing-groups-through-10-exampleUploaded 01-06-15Learn what "more than" and "less than" me…

Clarifying what "break" does and stepping through the insertion sort implementationUploaded 01-07-11 Learn more about your ad choices. Visit megaphone.fm/adchoices

Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once yo…