It definitely is strange to look at, but it's quite easy to understand if you know k/q. H is a short in k/q, so H refers to a short here as well. This naming scheme is true for all of the above letters.
It definitely is strange to look at, but it's quite easy to understand if you know k/q. H is a short in k/q, so H refers to a short here as well. This naming scheme is true for all of the above letters.