Complex Dot Product/Examples/3-4i dot -4+3i/Acute Angle Between

Examples of Complex Dot Product
Consider:
 * $z_1 = 3 - 4 i$
 * $z_2 = -4 + 3 i$

expressed as vectors.

Then the acute angle between $z_1$ and $z_2$ is approximately $16 \degrees 16'$

Proof
Let $\theta$ denote the acute angle between $z_1$ and $z_2$.

Then: