[evla-sw-discuss] Double precision

[Barry Clark]

Single precision is OK for antenna pointing (LSB = ".05), unless we do
something stupid.  Admittedly, it would be nicer to have something that
doing something stupid would not affect the answers.  (If I were implementing
the ACU servo, I would consider using DSP mode to pick up a couple extra 
bits.)

> 
> First, let me make sure I got it straight.  Is it because the TC11IB does
> not have an MPU and needs software math libraries and that Tasking will
> provide these libraries that we won't have double precision?
> 
> Second, and this is a Barry/Ken S. question.  If by some chance (and I
> don't think it has been ruled out yet), the antenna process (which might
> possibly be done in a MIB) does its own calculations for tracking based
> on its own geographic position, will we need double precision for these
> calculations?