A sine wave is an S-shaped waveform defined by the mathematical function y = sin x. It is depicted graphically as two semi-circular curves that alternate above and below a center line.

Visualizing Functions as Graphs: 1.1: A graph of a functions is a visual representation of the pairs (input, output), in the plane. This applet will help you to understand the connection between the ...

Students are taught the "unit circle" and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions. With static graphs and equations, it's ...