Hello! Thank you so much for your videos, they’re great. I had a quick question regarding unitaries. Around 0:48 you mentioned complex isometries are often called unitaries, but I thought unitary operators had to be square matrices, whereas isometries could be rectangular. Is this correct? Thanks again!
Hello! Thank you so much for your videos, they’re great.
I had a quick question regarding unitaries. Around 0:48 you mentioned complex isometries are often called unitaries, but I thought unitary operators had to be square matrices, whereas isometries could be rectangular. Is this correct?
Thanks again!
what does the star over the S mean ?
Adjoint