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Note
• The maximum and minimum values for the x-axis depend on the Center and Scale
settings, as shown below.
Maximum value: (Center Value) + (Scale Value) × 8
Minimum Value: (Center Value) - (Scale Value) × 8
• After changing the View-Window settings, you can restore the Center and Scale
settings to their automatically configured display range settings by performing the
operation: – [View-Reset].
• The values that you input for Scale and Center must be within the ranges defined
below.
1×10
-10
≤ Scale ≤ 1×10
10
-1×10
10
≤ Center ≤ 1×10
10
Circle
Circle provides the functions described below, which can be used to learn
about angles and trigonometric functions.
• Unit Circle and Half Circle Graphics
The Unit Circle graphic shows the unit circle with a radius of 1, while the
Half Circle graphic shows a half circle with a radius of 1. Both the unit
circle and half circle are centered on the origin of rectangular coordinates.
The figures below show each type of circle with angles of θ1 and θ2, along
with trigonometric function values.
Unit Circle
Half Circle
• Clock Graphic
The Clock graphic can be used to show the two angles that the hour and
minute hands form depending on the time of day. The figure below shows
a clock graphic with angles θ1 and θ2. In this graphic, the position of the
minute hand is fixed at 12 o’clock.
90
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