[Flightgear-devel] Slightly OT: Vector math question(s)!

[Matthew Law]

I'm about to start writing something in C to calculate the heading 
required to maintain a track and the resultant ground speed given a wind 
vector.  This is destined to be a simple flight planner for my Palm but 
I'd like to make an interface to FG so that in theory you could save a 
real flight and replay it in FG with the same conditions.

I envisage creating a struct to hold the the polar co-ords of each of 
the vectors involved i.e. magnitude and angle from 0 deg.  Given that 
the processor in a palm is not that beefy should I be storing and 
calculating the vectors this way or using the cartesian system?

I'm a total C newbie so please go easy on me :-)

All the best,

Matt.

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