This applet allows you to experiment with with two equations of the form

  c * (sin( ax + b ) + d) 

To change the function parameters click on the button for that function. If you are happy with your changes press Plot. To quit, and not change the function, press Quit or close the dialog box.

Angles are shown on the x axis and are plotted in radians. Note that the parameters determine the form of the sin, or cos, wave in the following manner:

• a - frequency 

• b - x offset 

• c - amplitude

• d - y offset