Which libraries do you use / would you recommend on your calculator?

[Dave Britten]

I've you've got a 48S/SX, then installing GX Library is non-negotiable, as far as I'm concerned.

It's not a library, but the USAG program is another firm requirement on either an SX or GX. It lets you see the expected input types for any built-in command.

KEYMAN is very useful if you do custom menus or key assignments. The ->TO? command is essential for putting programs inside custom menus (such as short programs that call up other custom menus for nested navigation).

The Programmer's Toolkit looks to have a lot of useful commands. Does anybody know if it works with a GX, or is it SX only?