They are points in space and part of a specific curvature strength shell sphere. So one can say that each db is an infinite in 3 dimensional curvature sphere.

I wrote the programs, though 25 years ago and that time hinders me to have all the details still clear in my mind. Though the program Einstein was rewritten by me two years ago so I dived into that code again and became aware of what I've programmed al those foggy years ago. So if you go into code questioning, my answers will take some more time...

Points in space with reference to what sphere ??? infinte curvature implies 0 radius. Are you meaning the db exists on a sphere whose curvature is defined by x,y,z. whilst the db has 0 dimensions ie infinite curvature ????

Borland C was a give away to 30 to 40 years old programming, hardly any one uses that anymore. I wont ask questions about the programs written that long ago

The unit for curvature = m^-1. Thank you for the extra mathematical insight. You also answered a question I had not thought of .

My questions are always simple My first checks are always look at the limits and the units.

I will probably have a few more questions next week, if you can be bothered to answer them