factor(x^4+1) and partfrac(1/(x^4+1))

factor(x^4+1) and partfrac(1/(x^4+1)) - Printable Version

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RE: factor(x^4+1) and partfrac(1/(x^4+1)) - Thomas_Sch - 10-23-2019 08:15 PM

(10-23-2019 07:15 PM)roadrunner Wrote: XCAS

-road

at my local XCAS there are "helpful" help files:
file:///C:/xcas64/doc/en/cascmd_en/cascmd_en164.html

RE: factor(x^4+1) and partfrac(1/(x^4+1)) - Joe Horn - 10-23-2019 09:04 PM

(10-23-2019 12:08 PM)Thomas_Sch Wrote: Hello Joe,
can you please post your other settings? (CAS and Home)
I get only the expression unchanged, like user rombva,
no matter what settings I make.
Many thanks in advance!

Terribly sorry... The screen shot I posted above was apparently obtained using a different firmware version, possibly a beta version which didn't say "BETA" in the top corner. All the recent firmware versions (I think!) return x^4+1 for an input of factor(x^4+1), as you and rombva said. My mistake! Sorry! Blush

RE: factor(x^4+1) and partfrac(1/(x^4+1)) - rombva - 10-24-2019 09:34 AM

Thanks for the replies.

RE: factor(x^4+1) and partfrac(1/(x^4+1)) - Tim Wessman - 10-24-2019 09:59 AM

Just an FYI, the CAS 1.5.0 version does do what you want with default settings I think. Take a look at the public beta just made available if you want.

https://www.hpmuseum.org/forum/thread-13855.html

[Image: screen1.png]