Trivial integral substitution quirk
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06-29-2021, 04:48 PM
Post: #1
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Trivial integral substitution quirk
The indefinite integral of (4/x^5)*cos((1/x^4)-6) is returned unevaluated while for the simpler case of (4/x^5)*cos(1/x^4) it is evaluated without issues. Image attached to demonstrate what I mean.
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06-30-2021, 03:03 AM
Post: #2
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RE: Trivial integral substitution quirk
I tried it as well with the same results.
The CAS-systems of TI (both nspire and ti 89 titanium) and casio (PC Software of Classpad II) solve both integrals without any problems. |
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06-30-2021, 07:04 AM
Post: #3
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RE: Trivial integral substitution quirk
Hi, if you press "simplify", the integral is solved.
Sincerely, Robmio |
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06-30-2021, 03:35 PM
Post: #4
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RE: Trivial integral substitution quirk | |||
07-01-2021, 07:05 PM
Post: #5
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RE: Trivial integral substitution quirk
I made a fix in giac source code (https://github.com/geogebra/giac/commit/...975563e66d) ... but I have no idea when it will be available on the Prime.
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