Texas Instruments TI-86 - Manual (Page 22)

10
Quick Start
00QWIKST.DOC TI-86, Quick Start, US English Bob Fedorisko Revised: 02/13/01 1:51 PM Printed: 02/13/01 2:59 PM Page 10 of 14
ᕢ Select y(x)= from the GRAPH menu to
display the equation editor. 5(sin x) is the
unevaluated expression stored to y1 in the
previous activity. The equation editor
menu is displayed as the lower menu.
&
equation
editor menu
ᕣ Move the cursor down. The y2= prompt is
displayed.
#
ᕤ Enter the expression 5(cos x) at the y2=
prompt. Notice that the equals sign ( = ) of
y2 is highlighted after you enter 5 . Also,
the equals sign of y1 is highlighted. This
indicates that both equations are selected
to be graphed (Chapter 5).
5 D > 2 E
Changing the Graph Style of a Function
In the equation editor, the icon to the left of each equation specifies the style in which the
graph of that equation appears when you plot it on the graph screen.
ᕡ Move the cursor to y1 . $
ᕢ Display the next menu group of the equation
editor menu. ( 4 at the end of a menu group
indicates that the menu has more items.)
/
ᕣ Select STYLE from the equation editor
menu to set ¼ (thick) graph style for y1 .
(
graph style icons
In the equation editor, you
must express each equation
in terms of the independent
variable x (in Func graphing
mode only; Chapter 5).
To display up to seven graph
styles, depending on the
graphing mode, repeat
( .