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Tool:
Sine curve visualization tool: built with Flash MX |
Screenshot:
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| Go to: |
http://www.galaxygoo.org/math/sineCurve.html
(opens a new window)
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| Description: |
As students drag the ball along the perimeter of the circle a line is drawn between the point on the circle and the corresponding point on the sine curve. The range is from 0 to 360 degrees on the circle and from 0 to 2 pi on the sine curve. For each point, lines are also drawn to represent the values of the sine function (shown in blue) and the cosine function (shown in red) at that point. By dragging the ball along the circle, you can clearly see that as the value of the sine function increases, the value of the cosine function decreases, and vice versa. |
| Technology Type: |
Flash | |
| Author: |
Vera Fleischer |
| Language: |
English | |
| Cost: |
Does not require payment for use |
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| Average Rating: |
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| Courses: |
Trigonometry |
Trig Functions |
| PreCalculus |
Functions |
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|
nelsono |
| Comment: | The only thing to fix is the last sentence of explanation.
As the ball drags around, you can see that the *absolute* value of the sine curve increases as the *absolute* value of the cosine curve decreases and vice versa. |
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