To access Show Computed Functions, click on Extended Features on the Main Menu of IFs.
By clicking on Show Computed Functions, you will be presented with a menu that looks similarly to the one pictured below:
The box that is located in the middle of your screen holds hundreds of functions. Select one or more of these functions. In order to select more than one function, highlight one function, hold in the Ctrl key and select a second function.
After you have selected a function, choose the Draw Graph option from the top of the menu. This will then display the function at the bottom of the screen along with the specific function and an R-Squared value.
You are then able to export what you have created by selecting Save Graph. This will open a new window that will present you with more graph saving options.
Turning Tracking On or Tracking Off allows values to be displayed in the top right corner of the graph.