Radians, Number Line and the Unit Circle

This applet demonstrates the correspondence between the points on the number line and the points on the unit circle.

• Enter a real number in the “step” input box. Try the applet with whole numbers, fractions, multiples or fractions of pi. (Example: pi/4)
• Select “Wrap Positive Numbers” or “Wrap Negative Numbers”.

Notice, you have to deselect one checkbox in order to be able to select the other one.

Irina Boyadzhiev, January 9, 2015, Created with GeoGebra

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Irina Boyadzhiev's  GeoGebra Applets

GeoGebra Graphics 2 and the Sine and Cosine Functions

Move the point on the circle in the left window (Graphics 1).

This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com

This applet demonstrates how to use Graphics 2 of GeoGebra. Graphics 1 shows the distances on the circle: distance traveled (a)  by a point about the circle from (1,0), it's distance from the x-axis (b), and its distance from the y-axis (c).

Graphics 2 shows the two points with coordinates (a,b) and (a,c). The traces of the points in Graphics 2 forms the graph of the sine function and the consine function from 0 to pi.


Download GGB file.