I had the same problem with the document system SCRIPT/VS on the mainframe. The macro language was integer only, and the equivalent command to the BASIC LET statement was .SE (SEt symbol)

.se a = &b + 2

So I wrote an enhancement to provide floating point variables, statistical functions, square root, and other functions not available. So of course I installed it as .SEX (SEt symbol eXtended)

Management had a different opinion, and insisted that it be implemented as .SEE (SEt symbol Extended)