With this overly-simplified 2d example of x, y(4,3)
Using the unit vector maths formula x/|distance|, y/|distance| the unit vector is v(0.8, 0.6)
this can further be reduced to v(0.4, 0.3)
For the sake of working pixels (bitmaps) where one can move 1 pixel in x for every fraction in y (or vice versa), I calculated the direction with another method which yielded v(1, 0.75)
Since this particular result using the popular formula is still reducible, should it still be regarded as the true unit vector ? If reducibility doesn't remove it from being accurately used as the unit vector then why not V(1 , 075)?
I ask because i'm currently working with bitmaps and the directions with pixels in the form of ratio 1 pixel : 0.xx pixel is very advantageous (and convenient) but i'm wondering if I would have less accurate result as a result (Oops :()