The movie illustrates a decomposition of functions.
A graph of function f(x) = g(x) ∙ sin x is given. Maximum of sin x is equal 1 and is reached at each xn=π/2+πn, so f(xn) = g(xn). Plot these points and draw a line through there.
The model is a movie. To navigate through the movie use Play, Pause, Stop, Previous step and Next step buttons.