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Half Circle
(1) Lines forming angles [θ1] and [θ2]. The currently selected line is
thicker than the other line. You can change the selection between θ1
and θ2 by pressing
or .
(2) Angle value of the currently selected line’s angle (θ1 or θ2).
(3) Trigonometric function values of the currently selected line’s angle
(θ1 or θ2).
Note
• When only a single angle (θ1 or θ2) is input, a single thick line will be displayed to
form the angle. In this case, the angle value of the single angle is shown for (2), and
trigonometric function values for the angle are shown for (3).
• On the graphic screen, the values of the trigonometric functions are displayed in
accordance with the settings of Input/Output and Angle Unit.
• When MathI/MathO or MathI/DecimalO is selected for Input/Output, trigonometric
values may include fraction or √ values as applicable.
Example: sin (45) = √
2/2, cos (30) = √3/2 (Angle Unit: Degree)
Clock Graphic Screen
The example below shows a typical Clock graphic screen.
(1) Clock graphic. The Clock always initially indicates 12 o’clock.
Press to advance the hour hand by one hour, or to move it
back.
(2) Time indicated by the clock.
(3) θ1: The smaller angle between the hour and minute hands.
θ2: The larger angle between the hour and minute hands.
93
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