[ODE] Why is dVector3 defined as dReal[4] ???

[Nguyen Binh]

MB> I wonder why:
MB> typedef dReal dVector3[4];

MB> Shouldn't it be:
MB> typedef dReal dVector3[3];   ?

    IMHO, it's for the sake of speed.
    Take a look at how the FPU doing math you'll see.
    
-- 
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   Nguyen Binh
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