A HP-50GX would have been incredible

[Bill Triplett]

Good point.

Another thing to wish for:

With complex mode enabled (flag 103 is set) and while in ALG mode, input SINH(X+i*Y) and press ENTER. If no contents are defined for X and Y, the result should be this:

sinh(x)*cos(y)+cosh(x)*sin(y)*i

Notice how the desired response would have no complex arguments in any of the trig functions. Instead, the current version responds with SINH(X+i*Y). This is nothing more than an echo of the input.

At least make this happen when using the EVAL() function as a wrapper around the SINH() function.