I tried using the Maplet Builder in Maple 12, and also looking up some links in the Maple Help section but found it rather confusing. Are there any particular sections in Maple Help or on the Internet that are helpful with Maplets, cause there are so many.

I need to create a maplet in which the user inputs the angle of entry, the angle of emergence, and the wavelength of a light ray entering a transparent block.

Also need a model/diagram of the result with the appropriate angles.