Calculator Operations
Turn the calculator on and press Y= . The Y prompts will appear in the viewing
window. Press CL to remove an old Y1 expression. Press ▼ CL to clear
additional expressions. The calculator should be setup in radian measurement,
with rectangular coordinates, and in equation editor mode. To complete this
setup, press 2ndF SET UP , touch B DRG, double touch 2 Rad, touch
E COORD, double touch 1 Rect, touch G EDITOR, and double touch 1 Equation.
Press 2ndF QUIT again to exit the menu and return to the Y prompts.
To enter the sine function ( y = sin x ) for Y1, press sin X/θ/T/n .
Enter the viewing window range by pressing ZOOM , touching E TRIG, and
double touching 1 sin x. This establishes built-in viewing-window range for
graphing the sine function. The window ranges are
-
2π≤x ≤ 2π and
-
1.55 ≤ y
≤ 1.55. The scale for the x axis is and the y-axis scale is .5.
The remaining five trigonometric functions can be graphed similarly.
2 Graphs of Trigonometric Functions/TRIGONOMETRY USING THE SHARP EL-9600
π
2
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