Yes, I got the same thing. I doubt there should be a "i" for the second term on the right hand side of the second equation. However, all the author's simulation is based on the second equation. I also tried to expand the first equation and simulated it, but it did not give a result that makes...
Would you pls help me with the following vector product? I got no idea how the author derived the second equation from the first one. My derivation result is always including the imaginary unit i for the second term in the second equation on the right hand side. Specifically, how to verify that...