excersise 2-3, what is the meaning of nand?

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Jun 22, 2011, 11:58:11 PM6/22/11

to Erlang Programming

b_not or b_and are just like "not" and "and".

But what is the meaning of nand?

thx

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Jun 23, 2011, 1:54:21 AM6/23/11

to erlang-prog...@googlegroups.com

Hi,

"nand" is like an inverted "and". It gives value of false if and only if both of its operands are true.

If we have two variables like A and B then the truth table will be as following :

A B A and B A nand B

------------------------------------------------

0 0 0 1

1 0 0 1

0 1 0 1

1 1 1 0

HTH

Ehsan,

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Erlang Programming Website:
http://www.erlangprogramming.org/

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Jun 23, 2011, 3:19:47 AM6/23/11

to erlang-prog...@googlegroups.com

"nand" stands for "not and", like the nand gates from the olden days.

nand(a,b) = not(and(a,b))

Best wishes

Ivan

--
============================================================
Ivan A. Uemlianin
Speech Technology Research and Development

"Froh, froh! Wie seine Sonnen, seine Sonnen fliegen"
(Schiller, Beethoven)
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