Wrapping the Number Line around the Unit Circle

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The standard introduction to radian measure and unit circle trigonometry involves "wrapping" the real number line around the unit circle. This Demonstration illustrates that wrapping. You can wrap either the positive or the negative values of , and can choose between the number line having ticks at the integers or at multiples of . The number line is colored to enhance the visual understanding of which numbers end up where on the circle.

Contributed by: Marc Brodie (Wheeling Jesuit University) (March 2011)
Open content licensed under CC BY-NC-SA



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