Given a function fn, return a memoized version of that function. A memoized function is a function that will never be called twice with the same inputs. Instead it will returned a cached value.

In the applet below is intended to help you understand the connection between the graph of a function and the function itself. Recall that a function can be thought of as a machine which takes an ...

Functions are fundamental in mathematics, describing relationships between inputs and outputs. For instance, linear functions are used to describe proportional relationships such as calculating cost ...

We can now start to group the code we're working with into "functions" and use functions to write more realistic, complex programs. Let's explore how functions work. We can think of functions as ...