@starkemis With 5,314 feature requests, and a small team, those needed by few users or difficult to implement may have to wait for a long time. I suggest workarounds because many users will prefer that to no solution, or waiting for another two years. Many feature requests are duplicates of existing requests, because many users do not search thoroughly when starting new requests. See also: Quick Unit Converter. There, you will see that other users also suggested web panels or extensions. As the saying goes: “A bird in the hand is worth two in the bush.”

@greybeard That must be all 3 of us, huh? As a (former) math teacher, I made sure I knew all about whatever calculator the students might choose. Note that I won't claim to prefer RPN - on calculators I prefer whatever is going to require the least translation from the textbook.