Post Reply 
NOT AND INSTRUCTION ?
08-05-2019, 09:11 AM
Post: #1
NOT AND INSTRUCTION ?
Hi all,

I wonder if NOT AND boolean instruction exist in the HP Prime. I think no, but how can we emule this instruction ?
I try since a moment but without success.

Maybe one can help me ?

Goog day.

Gérard.
Find all posts by this user
Quote this message in a reply
08-05-2019, 12:36 PM (This post was last modified: 08-05-2019 01:24 PM by chromos.)
Post: #2
RE: NOT AND INSTRUCTION ?
I think Gérard meant 'NAND' command.

If logical values are stored in list L1 then something like this could work:

   

Edit: strikethrough text was reaction to previous advice of another user and that post is now deleted.

Geocaching Coords Solver, Number of triangles Puzzle
Find all posts by this user
Quote this message in a reply
08-05-2019, 01:55 PM (This post was last modified: 08-05-2019 02:09 PM by StephenG1CMZ.)
Post: #3
RE: NOT AND INSTRUCTION ?
Thanks for that suggestion Chromos.
If it is NAND that is wanted I would suggest:
Code:

EXPORT NAND(LST)
BEGIN
 IF SIZE(LST)==1 THEN
  RETURN (LST(1)==0);
 END;
 RETURN NOT (ΠLIST(LST));
END;

That has the advantage of also working with a single input, which the built-in list function does not handle.

Stephen Lewkowicz (G1CMZ)
Visit this user's website Find all posts by this user
Quote this message in a reply
08-05-2019, 02:22 PM
Post: #4
RE: NOT AND INSTRUCTION ?
Yes it is NAND I was speaking.
Thank you for reply.

Gérard.
Find all posts by this user
Quote this message in a reply
Post Reply 




User(s) browsing this thread: 1 Guest(s)