The Museum of HP Calculators

HP Forum Archive 21

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hp49 en hp50
Message #1 Posted by qgrdne on 4 Feb 2013, 8:00 a.m.

Mode RPN, for the hp49 and hp50. I used the following command: '2^2^2^2' The result is: 65536. The answer should be: 256 With the hp48 (and hp85) I get the result 256. Any idea why the HP-49 and HP-50 gives this result (65536)?

      
Re: hp49 en hp50
Message #2 Posted by Eduardo Duenez on 4 Feb 2013, 8:05 a.m.,
in response to message #1 by qgrdne

Exponentiation is evaluated right-to-left in the absence of parentheses:

2^2^2^2 = 2^(2^(2^2))


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