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Easy question
09-10-2021, 05:23 PM
Post: #18
RE: Easy question
(09-09-2021 11:59 PM)ijabbott Wrote:  The result of (-1)^(4/5) will depend on whether or not you have the "Allow complex output from real input" option turned on or off in the settings. If turned off, you will get the real result -1. If turned on, you will get the complex result -0.809016994375+0.587785252292*i. Also, I think the CAS mode always approximates to the complex result.

HP Prime emulator, 2.1.14181 (2018_10_16), just after a hard reset.

From Symbolic Setup, if I pick Complex: Off, (-1)^(4/5) gives -0.809016994375+0.587785252292*i.
If I pick Complex: System, or On, (-1)^(4/5) give "Error: (X<0)^(∉Z)"

I was unable to setup calculator to give real root for (-1)^(4/5) = 1.0
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Messages In This Thread
Easy question - boggiano - 09-01-2021, 10:10 AM
RE: Easy question - roadrunner - 09-01-2021, 11:54 AM
RE: Easy question - rawi - 09-01-2021, 04:02 PM
RE: Easy question - toml_12953 - 09-01-2021, 04:11 PM
RE: Easy question - jte - 09-06-2021, 12:36 AM
RE: Easy question - Albert Chan - 09-06-2021, 01:17 AM
RE: Easy question - ijabbott - 09-06-2021, 12:41 PM
RE: Easy question - jte - 09-06-2021, 10:31 PM
RE: Easy question - Albert Chan - 09-07-2021, 01:09 AM
RE: Easy question - jte - 09-09-2021, 05:55 PM
RE: Easy question - jte - 09-06-2021, 05:39 PM
RE: Easy question - boggiano - 09-09-2021, 10:44 AM
RE: Easy question - Joe Horn - 09-09-2021, 05:40 PM
RE: Easy question - boggiano - 09-09-2021, 06:05 PM
RE: Easy question - toml_12953 - 09-09-2021, 10:10 PM
RE: Easy question - boggiano - 09-09-2021, 10:32 PM
RE: Easy question - ijabbott - 09-09-2021, 11:59 PM
RE: Easy question - Albert Chan - 09-10-2021 05:23 PM
RE: Easy question - ijabbott - 09-10-2021, 06:09 PM
RE: Easy question - boggiano - 09-11-2021, 12:16 AM
RE: Easy question - toml_12953 - 09-11-2021, 11:14 AM



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