Re: verkefni 4 vikubla� 10 -- SkilaboÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ°askjÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ³ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ°a TÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ¶lvunarfrÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ¦ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ°i 2

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Date Posted: 13:58:16 03/20/02 Wed
Author: Hj�lmt�r
Subject: Re: verkefni 4 vikubla� 10
In reply to: 's message, "verkefni 4 vikubla� 10" on 09:23:22 03/20/02 Wed

>Mig langar til a� f� �a� � hreint hvernig O() er
>fundi�. F�r � soldi� rugl � d�mat�manum

Formlega skilgreiningin er � Kafla 2 � Algorithms b�kinni, en �ar eru l�ka �msar reglur sem h�gt er a� nota s�r til
a� einfalda s�r �treikninginn og �a� er �a� sem �g hef veri� a� gera � fyrirlestrum. T.d. fastar � hverjum ��tti
skipta ekki m�li ( 3N er O(N), 0.001N er O(N) ). �egar tv� f�ll (��ttir) eru l�g� saman �� gildir �a� fall sem vex
hra�ast, t.d. 3N + 0.2N^2 er O(N^2), e�a vi� getum l�ka skrifa� O(N) + O(N^2) = O(N^2). �etta gildir �� a�eins
um samlagningu, ekki margf�ldun e�a veldishafningu.

Annars �tla �g ekki a� gefa fullkomna skilgreiningu � O()-hugtakinu. �a� er langskynsamlegast a� lesa um �a� � b�kinni.

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Replies:

Re: verkefni 4 vikubla� 10 -- No name, 12:49:01 03/21/02 Thu
- Re: verkefni 4 vikubla� 10 -- Hj�lmt�r, 14:21:44 03/21/02 Thu