Scratch that first post.It sounds aggressive...Let me just say that trying to downgrade a simple straight line diagram as something "inaccurate",and implying that it is for simpler minds or some such is only making you look like you are awfully defensive...it is not actually making anyone else look silly...
You always stick with the simplest method for YOU...personally,I think you just like math...in this case there is no need for it as the first step to building a guitar should be to draw up plans of what you are building to check all of your work from.And when you have all of those plans that you already made drawn full sized in front of you,then all of that fancy math and those equations become redundant.My "plans" are only two diagrams..one of the neck angle,and one of the fretboard taper...everything else is "art"
Some people mistake math as logic...keeping it simple is ALWAYS the most logical way.When you figure out your angle via your equation you still have to set up your tools for it,draw templates,or draw it directly onto the wood...every single part of which is going to put you more than a pencil width out of accuracy..
So if you take the guitar you build and measure it for accuracy,it is going to be no better than those done with the simple straight line method...and the straight line method is much simpler,therefor more logical in this application.
I THINK I WASTE MY TIME HERE.IT WAS MY MISTAKE TO SHARE MY THOUGHTS WITH SUCH PEOPLE WHO THINK I OFFEND THEM....
SUCH A PITY...
PLEASE CASE CLOSED....DONT CONTINUE THE CHAT...