HP Forums

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.

~~I think Gérard meant 'NAND' command.~~

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

[attachment=7587]

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

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.

Yes it is NAND I was speaking.
Thank you for reply.

ggauny@live.fr

chromos

StephenG1CMZ

ggauny@live.fr