Graphing Calculator 3D Define Function

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4. Define Function

This page explains how to define a function.

Steps:

Defining functions is just as easy as variables. It starts with a name followed by list of parameters in parentheses followed by the = sign. For example, you could type:

my_func(x,y)=x+y^2

Examples:

Here are some more examples of defining functions:

• f(x)=x+5
• doubleIt(value)=value*2
• avg(a,b)=sum(a,b)/2
• quadratic(x,a,b,c)=a*x^2+b*x+c