What are A, B, C ? (cont)

From Analytic Geometry:

V(ac) x V(ab) = (A, B, C) (Vector cross-product)

if I = (i1,i2,i3) and K = (k1,k2,k3) then

I x K = (i2*k3 - i3*k2, i3*k1 - i1*k3, i1*k2 - i2*k1)

So

V(ac) x V(ab) = (Emaj.dy * Ebot.dz - Emaj.dz * Ebot.dy,

Emaj.dz * Ebot.dx - Emaj.dx * Ebot.dz,

Emaj.dx * Ebot.dy - Emaj.dy * Ebot.dx )

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