HP 48G - Edit List

[John Keith]

It's a bit unclear from your post whether you want to remove an object by its position or by its value but here are a couple of suggestions.

With the list on level 2 and the position on level 1:

Code:


\<< DUP2 1 SWAP 1 - SUB ROT ROT 1 + OVER SIZE SUB +
\>>

With the list on level 2 and the object to search for on level 1 as in your example, just a small addition to the program above:

Code:


\<< OVER SWAP POS DUP2 1 SWAP 1 - SUB ROT ROT 1 + OVER SIZE SUB +
\>>

As a side note, my opinion is that DEPTH is a command that should be used carefully if ever in programs. One basic principal of RPL programming is that a program should take a specific number of objects from the stack and not affect other objects that may be above them on the stack. The program fragment DEPTH \->LIST violates that principle by sweeping up everything on the stack regardless of its purpose or origin.