Texas Instruments -84 Plus, Руководство пользователя

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Chapter 3: Function Graphing 99
Y n ( value )
Y
n
({
value1,value2,value3, . . .,value n
})
Selecting and Deselecting Functions Selecting and Deselecting Functions Selecting and Deselecting Functions Selecting and Deselecting Functions
Selecting and Deselecting a Function Selecting and Deselecting a Function Selecting and Deselecting a Function Selecting and Deselecting a Function
You can select and deselect (turn on and turn off) a function in the Y= editor. A function
is selected when the
=
sign is highlighted. The TI-84 Plus graphs only the selected
functions. You can select any or all functions Y1 through Y9, and Y0.
To select or deselect a function in the Y= editor, follow these steps.
1. Press
o
to display the Y= editor.
2. Move the cursor to the function you want to select or deselect.
3. Press
|
to place the cursor on the function’s
=
sign.
4. Press
Í
to change the selection status.
When you enter or edit a function, it is selected automatically. When you clear a function,
it is deselected.