Basic Circle Functions

Topic:Circle, Cosine, Functions, Sine, Tangent Function, Trigonometry

David Joyce is a brilliant visual thinker and representer, and he has this great image at the beginning of his trigonometry short course. See the course at http://www.clarku.edu/~djoyce/trig/

New Resources

Graph of y = ax² + bx + c
apec
Toroidal Spiral
Trefoil Knot
Quiz: Vertical Angles and Linear Pairs

Discover Resources

Exercise Applet example on safari
ellipsedef
Inner Parallelogram Construction
The Zariski-closure of 3-ellipse (with dynamic coloring of the branches)

Discover Topics

Numbers
Power Functions
Indefinite Integral
Square
Difference and Slope