[Paparazzi-devel] Difference Between Fixed-point and Floating-point Schemes

[Chris Wozny]

All,

I had a general question born out of curiousity. I know floating point
numbers are more computationally intensive than fixed point integers
in terms of operations (i.e. multiplication, etc). I was just
wondering, what is the difference then between the int_quat
stabilization subsystem versus the float_quat one (or int_cmpl_quat
versus float_cmpl if the only difference is fixed-point versus
floating point)? In an ideal world where we could compute both
operations just as quickly, is there one which is better than the
other due to higher precision of floats? These aren't specific to any
branch, it's just more of a general question that I was wondering
about.

Thanks,
Chris