The Wisdom of Crowds

[Vtile]

(04-19-2016 01:27 PM)Dave Britten Wrote:  I find GX Library quite essential for a 48S/SX.

http://www.hpcalc.org/details.php?id=2796

It has reimplementations of the following G/GX commands, and only requires about 2.5 KB:

HEAD
TAIL
SEQ
DOSUBS
DeltaLIST
NSUB
ENDSUB
STREAM
SigmaLIST
PiLIST
DOLIST
ADD
REVLIST
SORT

Keyman is also extremely useful just for the ->TO? command, which allows you to do nested CST menus. (You can do them without adding a takeover, but then they won't work inside the editor.)

And I think the biggest 'must-have' for a 49 is a 48 to replace it with.

You can do nested CST menus with plain UserRPL atleast in 50g, no add-ons needed. 50g is also must have replacement for 48x&49x

What comes to books "Mathematics for the millions" is nice to read, although I have only read a translation of it not the original book. (Doesn't relate to HP calculators, but fits to the topic )