„Sjálfhverfa“: Munur á milli breytinga
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Ný síða: right|thumb|An involution is a function <math>f:X\to X,</math> which, when applied twice, brings one back to the starting point. '''Sjálfhverfa'''<ref name=... |
mEkkert breytingarágrip |
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: ''f''(''f''(''x'')) = ''x'' fyrir öll ''x'' í [[formengi]] ''f''.<ref>{{Citation|last=Russell|first=Bertrand|title=Principles of mathematics|year=1903|publisher=W. W. Norton & Company, Inc|pages=page 426|url=http://books.google.com/books?id=63ooitcP2osC&lpg=PR3&dq=involution%20subject%3A%|edition=2nd|isbn=9781440054167}}</ref> |
: ''f''(''f''(''x'')) = ''x'' fyrir öll ''x'' í [[formengi]] ''f''.<ref>{{Citation|last=Russell|first=Bertrand|title=Principles of mathematics|year=1903|publisher=W. W. Norton & Company, Inc|pages=page 426|url=http://books.google.com/books?id=63ooitcP2osC&lpg=PR3&dq=involution%20subject%3A%|edition=2nd|isbn=9781440054167}}</ref> |
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== Tilvísanir == |
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<div class="references-small"><references/></div> |
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== Tengt efni == |
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* [[ROT13]] |
* [[ROT13]] |
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* [[Sjálfmótun]] |
* [[Sjálfmótun]] |
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[[eo:Involucio]] |
[[eo:Involucio]] |
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[[fr:Involution (mathématiques)]] |
[[fr:Involution (mathématiques)]] |
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[[is:Sjálfhverfa]] |
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[[it:Involuzione (teoria degli insiemi)]] |
[[it:Involuzione (teoria degli insiemi)]] |
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[[he:אינוולוציה]] |
[[he:אינוולוציה]] |
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Útgáfa síðunnar 30. maí 2012 kl. 00:35
Sjálfhverfa[1] eða sjálfhverf vörpun[1] er stærðfræðifall f sem er sín eigin andhverfa:
Tilvísanir
- ↑ 1,0 1,1 sjálfhverfa
- ↑ Russell, Bertrand (1903), Principles of mathematics (2nd. útgáfa), W. W. Norton & Company, Inc, bls. page 426, ISBN 9781440054167