Texas Instruments TI-83 PLUS - Manual (Page 158)

TI-83 Plus Parametric Graphing 155
1. Press z . Press † † † ~ Í to select
Par mode. Press † † ~ Í to select Simul
for simultaneous graphing of all three
parametric equations in this example.
2. Press o . Press 30 „ ™ 25 y ; 1
(to select ¡ ) ¤ Í to define X
1T
in terms of T .
3. Press 30 „ ˜ 25 y ; 1 ¤ ¹ 9.8
¥ 2 „ ¡ Í to define Y 1T
.
The vertical component vector is defined by X 2T
and Y 2T
.
4. Press 0 Í to define X 2T
.
5. Press  ~ to display the
VARS Y . VARS
menu.
Press 2 to display the
PARAMETRIC
secondary
menu. Press 2 Í to define Y 2T
.