Texas Instruments TI-73VSC Guidebook - Page 174
Editing Functions, highlight its
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168 Chapter 9: Function Graphing Editing Functions You can edit or delete functions at any time in the Y= editor. Move the cursor to the function in the Y= editor that you want to change. You can: • Use the edit keys such as / and - m to delete and insert characters. • Overwrite current entries. • Delete a function with :. Position the cursor anywhere on the function. Selecting Functions Even if a function is defined in the Y= editor, the TIN73 only graphs the function if it is selected (turned on). You know that a function is selected because the background behind a functions equal sign (=) is dark. When you first define a function, it is selected automatically. To select or deselect a function, highlight its = using the cursor keys, and then press b. Y2 is selected. Y2 is deselected. You can change the on/off status of a statistical plot in the Y= editor. To select or deselect Plot1, Plot2, or Plot3, highlight the name (across the top of the Y= editor) using the cursor keys, and then press b. A plot is selected (on) if the background behind its name is dark.