The Museum of HP Calculators

HP Forum Archive 14

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Humidity computer
Message #1 Posted by Tizedes Csaba [Hungary] on 2 Mar 2005, 9:48 a.m.

http://www.precitech.net/central/Lambrecht/Humidity.pdf

And go to the last page...

Cs.

      
Re: Humidity computer
Message #2 Posted by Charlie O. on 2 Mar 2005, 12:29 p.m.,
in response to message #1 by Tizedes Csaba [Hungary]

I wonder if they have a stock and for what price?

      
your own free humidity calculator!
Message #3 Posted by hugh steers on 2 Mar 2005, 5:32 p.m.,
in response to message #1 by Tizedes Csaba [Hungary]

oddly enough, i used the equations of humidity as a test for various calculators. this page details the formulae and some example programs.

this wasnt meant to be a critique of hp vs ti or casio or anything, but the ti got the most marks. it was an experiment. the 71b would have also won if it had a builtin solver (ie the math rom). the test was based on whether my programs worked first time and how easy it was to write them. obviously, this will depend a lot on how familiar i am with various models.

http://www.voidware.com/calcs/quest.htm

note: it is true that some of the hp's involved have interface capabilities that would be extremely valuable in a lab environment and i haven't considered that at all in my criteria.

Edited: 2 Mar 2005, 5:39 p.m.


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