Function Model

What does this Model Represent?

This model is a cosine wave with adjustable frequency. It uses the equation cos(x * f), with f representing the frequency. This model could represent many situations, such as sound waves, waves in water, or vibrations on a string.

What are the elements of this Model?

• frequency – the speed with which the wave will cycle.
• x – the time steps that are used to get each value.
• y – the value of cos(x * f) at this time step.

How do I use this Model?

Slide the scroll bar up and down. Watch how the different frequencies affect the graph.

What should I expect?

A higher frequency means more waves that are closer together. A lower frequency means the graph will become more flat. A frequency of zero will make all of the resulting values in the y column become 1.

Download the model file.