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log(-0.5)^2 no math error?
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log(-0.5)^2 no math error?
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log(-0.5)^2 no math error?
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07-07-2022, 06:59 PM
(This post was last modified: 07-07-2022 07:16 PM by pier4r.)
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log(-0.5)^2 no math error?
Few minutes ago while tinkering with my trusted El 506W (sharp) I got a surprise.
To my knowledge there is no way log(-0.5)^2 is admissible (in R at least), I checked with a couple of other calculators and it seems I remember correctly. Despite that I got a value back (-0.602...): https://i.postimg.cc/tCpycV6K/photo-5348...3316-y.jpg Do you know any other calculator that have such subtle quirks despite being generally reliable? (HP35s excluded) Today is the first time I see my EL-506W answer me unreliably (I have it since 2003 ! Maybe it is simply old like me) edit: apparently playing a bit more with the Sharp, it seems that it is a quirk of the syntax. log(x)^y is not the same of (log(x))^y while on other systems it is the same. Wikis are great, Contribute :) |
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| Messages In This Thread |
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log(-0.5)^2 no math error? - pier4r - 07-07-2022 06:59 PM
RE: log(-0.5)^2 no math error? - Thomas Klemm - 07-07-2022, 07:25 PM
RE: log(-0.5)^2 no math error? - Albert Chan - 07-07-2022, 09:10 PM
RE: log(-0.5)^2 no math error? - pier4r - 07-07-2022, 09:03 PM
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