this post was submitted on 30 Oct 2024
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It makes sense if you represent complex numbers as
(a, b)
pairs, wherea
is the real part andb
is the imaginary part (just like the populara + bi
representation that can be expanded toa * (1, 0) + b * (0, 1)
). AB's length is(1, 0)
, AC's length is(0, 1)
, and BC's length will also be a complex number.I think.
Yes. Also if you think of i as a 90° rotation (with a length of the scalar coefficient infront of i, in this case 1) . Thus one rotates you outwards away from the 2D plane, and two of those gets you back to the 2D plane, just going the other direction.