You can use function notation as an easy, efficient way of using equations without re-writing them. For example, you can evaluate a function at a certain point:

You can use the notation f(x,y), for example, to define a function with more than one variable:

Defining a function once allows you to use this function within other functions. 

Or, you can combine multiple functions together to create a separate function. 



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  • 4
    Caleb Parks

    Functions should be able to accept points as arguments. It would be very helpful.

  • 10
    skylord a52

    Are there any plans to eventually implement recursive functions?

  • 0
    Leslie Koller

    Your f(x,y) never uses the y is essentially a one-variable function.  I was looking for how to graph f(x,y)=x+y+xy?

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