This page will help you construct solutions to the addition of functions whose x-axis is in radians. You will need to edit (redefine) each function by following the on-screen instructions.
This applet will illustrate the subtraction of two functions, f(x) and g(x). h(x) will represent the difference of f(x) and g(x)
f(x) will graph in green, and g(x) will graph in red. The difference of the functions is called h(x); it will display in blue. By clicking on the appropriate checkbox, you will be able to display each graph separately or together.

Feel free to change either f(x) and g(x), they are independent functions. h(x) as this is a dependent function. h(x) = f(x) - g(x) is predefined and changing it will make the application to not work.
This applet can be used by teachers in a demonstration mode in the classroom or teachers can have students load it on their own computers with a worksheet to be complete for a grade.