HP 27S

[deffunc]

(11-12-2021 04:54 PM)carey Wrote:  The HP 27S had broad appeal and included sufficient scientific functions, along with a Get/Let Solver, to do real work.

I would love a DO function for indefinite loops in the solver, e.g.,
DO(condition:expression:expression:...)
where the expression(s) would be executed as long as the condition is true. The value returned by the DO() is the computed result of the last expression when the condition is false.

Expanding the [PROB] menu to include normal, chi-squared, t and F distributions, along with their inverses, like on the 21S, would be very helpful.