Sharp EL-9900 - Manual (Page 141)

8
Advanced Keyboard/PROGRAMMING USING THE SHARP EL-9900
Copyright © 2002, Sharp Electronics Corporation. Permission is granted to photocopy for educational use only.
DispG PRGM C 4 ENTER
End PRGM A 6 ENTER
Label A PRGM B 0 1 ALPHA A ENTER
“(-A
×X2–D×X–F)
PRGM A 2 ( (-) ALPHA A
÷(B×X+E)”⇒Y1 ×
X/
θ/T/n x
2 – ALPHA D
×
X/
θ/T/n
– ALPHA F )
÷
( ALPHA B
×
X/
θ/T/n + ALPHA E ) PRGM
A 2 STO 2ndF VARS A ENTER A 1
ENTER
DispG PRGM C 4 ENTER
End PRGM A 6 ENTER
Press 2ndF QUIT to exit the editor.
4. Set the calculator to one-line editor by pressing 2ndF SETUP G 2
Press Y= and CL to clear the Y1 prompt. Press CL
to clear additional prompts if necessary. Set the viewing window for the
graphing by pressing ZOOM A 7 . Execute the CONICGRA program by
pressing PRGM A (EXEC) and selecting CONICGRA.
5. Enter the A, B, C, D, E, and F from the general conic equation Ax 2 + Bxy + Cy 2
+ Dx + Ey + F = 0. Graph the general conic equation x 2 + 2y 2 + 4x – 6y – 3 = 0
by pressing 1 ENTER 0 ENTER 2 ENTER 4 ENTER (-)
6 ENTER (-) 3 ENTER . When the program is through it will
return to the home screen. Press GRAPH to view the graph.
6. Gaps in the graph of conics is common. This is due to the graphing of two
equations to form the complete graph. You can repeat this program for
other conics by pressing ENTER to execute the program over and over
again. Press CL to clear the screen. If you receive an error statement,
press or to go to the line within the program with the error.
Correct the error and execute the program again.
Return the calculator to equation editor mode by pressing 2ndF SETUP
G 1 .
GRAPHING CONICS
(continued)
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