The compasses in GPS receivers are mag flux valves - you "calibrate" them to local conditions via a procedure... you kick it into compass cal mode, and then rotate the unit slowly, in a level orientation, for 2 full turns. The unit can then compensate for some local effects.
MOD the parent of this comment up!!!
The compasses in GPS receivers are mag flux valves - you "calibrate" them to local conditions via a procedure... you kick it into compass cal mode, and then rotate the unit slowly, in a level orientation, for 2 full turns. The unit can then compensate for some local effects.
LISP is an awful language to learn as a first language, not because of it's syntax (which is bad enough) but...
BECAUSE IT USES A COMPLETELY DIFFERENT THEORY OF COMPUTABILITY THAN EVERYTHING ELSE.
Most other languages use turing machines as their basic computability theory.
LISP uses micro recursive functions
Each is as strong as the other - but involved radically different thought processes.