Christophe de Dinechin

Typing `A+iB`, then running `->Polar` gives an algebraic expression with the infix notations for `hypot` and `atan2`. The result does not parse back from the command line.

Factorial function enters as `x!` on the command line, but that does not parse correctly. It's instead treated as the name `x` followed by a factorial.

The HP48 has a CST key that shows a menu defined in the CST variable.

A request in https://www.hpmuseum.org/forum/thread-14799-post-130074.html#pid130074 for HP Prime enhancements reads: > On the subject of new features, real RPL (or New RPL) would be my first > request, and ideally replacing...

Observed with operations on very big numbers: the garbage collector indicator turns into a horizontal line instead of erasing itself. Possibly related to recent changes in blitter code?

The command indicator on the screen is sometimes not cleaned up correctly. This seems to appear notably when the new command is shorter than the old one.

There are a number of settings for which the settings command was not created. This includes `maxinteg`, but there are probably other.

Make it possible to define a user-mode keyboard map. Map the `ASN` (shift 1) and `USER` (shift 2) keys.

Try an iOS build since Qt supports it

While the HP50 does not accept `'#50'` (i.e. a based number in an equation), there really is no good reason for this restriction.