The Magnetic Field Made along a Path by Six Rings Of Current

This code plots the magnetic field strength as you move from a starting to a finishing point. The six rings, are loops of current placed in a box around the center. You can pick the number of steps taken between each point. The code has issues with 0, I used 1E-8 as a substitute. Here are a couple of important parameters:

- There are: 20,000 Amp*Turns running through each loop.
- The rings have a radius of: 0.127 M
- The rings are located :0.1963 M from the center

You are asked to provide 7 bits of information, below is some example input:

Starting Point
X? :-0.5588
Y? :1E-8
Z? :1E-8

Finishing Point
X? :1E-8
Y? :1E-8
Z? :1E-8
Steps? :40