Why AND Array function gives true for empty array elements ?

[Kumar_B]

In first the array control is empty the AND Array Elements function gives the result as True, is it correct  behaviour ? Explain me !

After inserting boolean conditions to the array control it works correctly.

i am using labview 7.1

screenshot attached.

-Kumar B.

http://forums.ni.com/ni/board/post?board.id=170&message.edit_id=246620

Message Edited by Kumar B on 05-10-2007 12:50 AM

[TCPlomp]

Hi Kumar,

this is expected behaviour and (supposedly) mathematically correct:
see here,

Ton

[parthabe]

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@TonP wrote:
this is expected behaviour and (supposedly) mathematically correct:

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Ton,

It is supposedly MATHEMATICALLY correct, is it LOGICALLY correct... ?!

Just joked !

[JB]

Another test to check the logic of your mind : What is the expected result of Check if File or Folder exists.vi with an empty path wired to it ?



And the answer is...

Message Edité par JB le 05-10-2007 09:30 AM

[TiTou]

Without any doubt the answer in "True"
 
Empty path is the root ("/") path.  On windows and mac this is an imaginary folder that contains all the hard drives as subdirectories. On linux, this is the root / directory.

Side note : what happens if you launch "Delete Recursive function" with an empty path as input :-o, be carefull !