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Advanced Keyboard/CALCULUS USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
Steps for graphing a parametric function:
1. Turn the calculator on and press 2ndF SET UP E (COORD)
2 (Param) to change to parametric mode. Press 2ndF QUIT
to exit the SET UP menu.
2. Make sure calculator is set to display rectangular coordinates when tracing
by pressing 2ndF FORMAT F (CURSOR) 1 (RectCoord)
. Press 2ndF
QUIT to exit the FORMAT menu.
3. To enter the parametric function X1T = 2(cos T)
3
, Y1T = 2(sin T)
3
, press
Y= CL 2
(
cos X/θ/T/n
)
a
b
3 ENTER CL 2
(
sin
X/θ/T/n
)
a
b
3 ENTER . Notice, when in parametric mode the
X/θ/T/n key provides a T for equation entry.
4. Now, graph the parametric function in the Decimal viewing window by
pressing ZOOM A (ZOOM) 7 (Dec).
5. Press TRACE and notice the expression and T values now appear on the
range screen.
GRAPHING PARAMETRIC EQUATIONS
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