This site uses cookies. Some of these cookies are essential to the operation of the site, while others help to improve your experience by providing insights into how the site is being used. For more information, please see the ProZ.com privacy policy.
Cookie settings
  1. KudoZ™ Top
  2. English to Croatian
  3. Mathematics & Statistics

ill-conditioned matrix

For term searches and specialty glossaries, please try the new GBK glossaries
14:54 Mar 22, 2011
English to Croatian translations [PRO]
Tech/Engineering - Mathematics & Statistics
Additional field(s): Physics
English term or phrase: ill-conditioned matrix
Definition from Washington State University - Math:
We call a square matrix A ill-conditioned if it is invertible but can become non-invertible (singular) if some of its entries are changed ever so slightly. The condition number of A is a measure of how ill-conditioned A is and can be found using A and A-1. The bigger the condition number is the more ill-conditioned A is. Well-conditioned matrices have condition numbers close to 1.

Example sentence(s):
  • Ill-conditioned matrices and matrix condition numbers are discussed and an efficient and reliable indicator of ill-conditioned matrices is suggested WILEY online Library
  • Conditioning (9.11.) [TB, Lect. 12] examples for cancellation and an ill-conditioned matrix. Technische Universität München, WS 201
  • The condition number is a measure of stability or sensitivity of a matrix (or the linear system it represents) to numerical operations. In other words, we may not be able to trust the results of computations on an ill-conditioned matrix. Planet Math.org
Glossary-building KudoZ




This question was created by:
Glossary-building KudoZ
Glossary-building KudoZ


This question will remain open until an answer receives the required level of agreement from peers. Submission is still possible.


Summary of translations provided
5loše uvjetovana matrica
Nevenchi


  

Translations offered


16 days   confidence: Answerer confidence 5/5
loše uvjetovana matrica


Definition from own experience or research:
Loše uvjetovana matrica je matrica s (vrlo) velikim brojem uvjetovanosti.

Example sentence(s):
  • Ako je matrica loše uvjetovana (cond (A) je puno veći od 1), već male pogreške u elementima matrice A ili vektoru b proizvest će velike pogreške u vektoru rješenja x. - www.mathos.hr  
  • Osim toga, ako je matrica A loše uvjetovana, kod tog sustava možemo lakše koristiti iterativno profinjavanje rješenja. - numerička matematika  

Explanation:
Broj uvjetovanosti, koji karakterizira uvjetovanost matrice kao dobru ili lošu, računa se pomoću normi matrice i njoj inverzne matrice. Inverz se može odrediti samo za regularnu matricu. Dobro uvjetovana matrica (regularna) ima mali broj uvjetovanosti (blizu 1), dok singularna matrica ima beskonačan broj uvjetovanosti.

cond (A) = ||A|| ||A^(-1)||
Nevenchi
Local time: 10:13
Native speaker of: Native in CroatianCroatian
Login to enter a peer comment (or grade)



Login or register (free and only takes a few minutes) to participate in this question.

You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.

Return to KudoZ list

KudoZ™ translation help

The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases.

See also:
ProZ.com term search
Search millions of term translations
Close search
Term search
  • All of ProZ.com
  • Term search
  • Jobs
  • Forums
  • Multiple search