Apple Newton Works Graphing Calculator - Manual (Page 28)

Or polar coordinates:
To plot a function, follow these steps:
1 Create your function.
See “Creating Your Own Functions” in Chapter 2.
2 Position the cursor on the line of the function you want to graph.
3 Tap Tools, then tap Graph or Graph Polar.
A graph of your function appears.
If you change a graphed function in the math window, the graph is updated
automatically after you evaluate the function. If a function is dependent on a variable,
the graph is updated automatically when you change the value of that variable.
28 Chapter 3