Here is a document that derives many things from scratch and answers the question about how far the Moon falls.
Here’s an interesting video that shows how circles morph into sines and then how infinite sines make up each complex waveform.
There is a good site that gives lots of detail about this subject.
The site is here: http://www.maxwells-equations.com/index.php#maxwells
It’s clickable to all the symbol explanations.
I wanted to request permission to post this, but I couldn’t find an email address on the website.
I’ve updated my RC Response document (See the Math Documents link from the main menu). I added a section that explains why time shifting involve subtracting rather than adding slices of time.
Here’s another page that goes into even more detail.