Description 
This code finds the magnetic field strength (in gauss) for an X, Y and Z coordinate inside 6 rings in a box. The center of the structure is the point (0, 0, 0). The rings are numbered 16. Each ring has a radius of 0.127 meters, there is 0.1963 meters from midplane to midplane and each ring has 20,000 ampturns.
The user enters values in meters:
X? :0.1
Y? :0.1
Z? :0.05
The user gets an output in Gauss:
X :877.8909 (gauss)
Y :877.8909 (gauss)
Z :678.0095 (gauss)
and the component vectors:
XDirection
=======
Ring One, BRad: #, BLinear:#
Ring Two, BRad: #, BLinear:#
Ring Three, BRad: #, BLinear:#
Ring Four, BRad: #, BLinear:#
Ring Five, BRad: #, BLinear:#
Ring Six, BRad: #, BLinear:#
Etc....
