## Unit Circle

**Unit Circle Directions:**

- Default Functions:
- Refresh Button: To reset the applet, click the Refresh Button at the top-right corner.
- Zoom In/Out: Using your scroll wheel, you can zoom in and zoom out of the applets visible area. The screen tends to re-center wherever the mouse cursor is located.
- Move: Hold the Shift key and then click and hold your primary mouse button to pan around the visible area of the applet.

- Movable Objects:
- Check-boxes: To show or hide the corresponding divisions of the unit circle and also to reveal an interesting pattern to build the unit circle.
- Sliders:
- α and δ: Click and drag the point to view the angle increments in a counter-clockwise or clockwise direction.

- Purpose: To provide students with an interactive reference of the Unit Circle and to demonstrate how to build one without knowing the special triangles that contribute to its construction.

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