Biconjugate gradient stabilized method: Revision history

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curprev 07:2207:22, 18 June 2025 Weberjoh talk contribs m 24,253 bytes 0 The second equation in the derivation was inconsistent with the second recurrence relation right above the section, i.e. a P was used in the recurrence relation in place of a T. It's easy to check that the latter is correct, so I fixed that mistake. undo Tag: Visual edit

curprev 13:2313:23, 27 April 2025 MediaKyle talk contribs 24,253 bytes +45 Adding local short description: "Concept in mathematics", overriding Wikidata description "iterative method for the numerical solution of nonsymmetric linear systems" undo Tag: Shortdesc helper

curprev 18:2018:20, 8 April 2024 Procyon117 talk contribs m 24,208 bytes +12 v2.05 - Fix errors for CW project (Reference list missing - Reference before punctuation) undo Tag: WPCleaner

curprev 19:4319:43, 6 April 2024 Amanda2277 talk contribs m 24,196 bytes +2 Fixed the date in reference undo Tag: Visual edit: Switched
curprev 19:3519:35, 6 April 2024 Amanda2277 talk contribs 24,194 bytes +553 →Unpreconditioned BiCGSTAB: Added reference to paper showing numerical impact of choosing a different rhat0 undo Tag: Visual edit

curprev 16:4316:43, 31 August 2023 Fastman99 talk contribs 23,641 bytes −25 →Unpreconditioned BiCGSTAB undo
curprev 16:3916:39, 31 August 2023 Fastman99 talk contribs 23,666 bytes −142 →Preconditioned BiCGSTAB undo
curprev 06:2106:21, 31 August 2023 Fastman99 talk contribs 23,808 bytes −16 →Unpreconditioned BiCGSTAB: This version of the algorithm is more efficient and more closely follows Saad. It is Algorithm 7.6 in the 2nd edition and 7.7 in the 3rd edition. undo

curprev 14:5714:57, 26 January 2023 Kku talk contribs m 23,824 bytes +12 link [dD]ot product undo

curprev 04:0804:08, 24 December 2022 24.186.225.199 talk 23,812 bytes +30 Fixed missing r_0 in the definition of r_i. undo Tag: Visual edit

curprev 03:3203:32, 28 November 2022 24.186.225.199 talk 23,782 bytes +36 Added missing boldfaces for K, p, and s. undo

curprev 18:0818:08, 11 November 2022 62.235.16.231 talk 23,746 bytes +106 Mentioned that transpose is unnecessary, unlike BiCG undo

curprev 20:5120:51, 2 June 2022 Citation bot talk contribs 23,640 bytes −26 Removed parameters. | Use this bot. Report bugs. | Suggested by AManWithNoPlan | Linked from User:AManWithNoPlan/sandbox3 | #UCB_webform_linked 21/186 undo

curprev 07:3107:31, 29 April 2022 David Eppstein talk contribs 23,666 bytes −212 emis.ams.org => emis.de undo

curprev 14:2814:28, 3 May 2021 79.8.186.17 talk 23,878 bytes +60 →Preconditioned BiCGSTAB undo Tag: Visual edit

curprev 22:3822:38, 1 October 2020 Anomalocaris talk contribs m 23,818 bytes −30 fix misnested bold markup by removing it, although perhaps not as intended undo

curprev 21:4221:42, 30 September 2020 45.45.15.156 talk 23,848 bytes +12 →Preconditioned BiCGSTAB undo

curprev 13:3813:38, 1 July 2020 InternetArchiveBot talk contribs 23,836 bytes +210 Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.1 undo

curprev 12:4712:47, 16 April 2020 OAbot talk contribs m 23,721 bytes +20 Open access bot: hdl added to citation with #oabot. undo

curprev 22:4722:47, 13 December 2019 Citation bot talk contribs m 23,701 bytes +28 Add: chapter-url-access, chapter-url, hdl. Removed or converted URL. Removed parameters. Some additions/deletions were actually parameter name changes.| You can use this bot yourself. Report bugs here.| Activated by User:Nemo bis | via #UCB_webform undo

curprev 10:0510:05, 9 November 2019 InternetArchiveBot talk contribs 23,673 bytes +151 Bluelink 1 book for verifiability.) #IABot (v2.0) (GreenC bot undo

curprev 16:5816:58, 1 December 2018 JCW-CleanerBot talk contribs m 23,522 bytes −4 →References: task, replaced: SIAM J. Sci. and Stat. Comput. → SIAM J. Sci. Stat. Comput. undo Tag: AWB

curprev 08:3808:38, 20 April 2018 Amalthea talk contribs m 23,526 bytes +19 Fixed some mismatch var tags ... not sure if all. Fixes lint errors. undo

curprev 09:0509:05, 4 April 2017 140.78.117.53 talk 23,507 bytes +4 →References undo

curprev 18:4018:40, 7 January 2017 Vdebuen talk contribs m 23,503 bytes +1 →Unpreconditioned BiCGSTAB: Just a new line undo Tag: Visual edit
curprev 18:0118:01, 7 January 2017 Vdebuen talk contribs m 23,502 bytes +285 →Unpreconditioned BiCGSTAB: Just a note about a not very usual notation of scalar product of vectors undo Tag: Visual edit

curprev 14:2014:20, 3 May 2016 129.11.37.82 talk 23,217 bytes −2 →BiCG in polynomial form undo

curprev 18:1718:17, 10 March 2016 5.170.106.112 talk 23,219 bytes −15 more general description of the half-iteration exit condition. e.g. matlab uses norm(b-Ax) instead of the less stable norm(s) for deciding. undo
curprev 17:0117:01, 10 March 2016 5.170.106.112 talk 23,234 bytes −12 No edit summary undo

curprev 08:3208:32, 21 February 2016 Michael Frind talk contribs 23,246 bytes +1 →Generalization: Minor punctuation undo

curprev 12:1412:14, 29 August 2015 Dexbot talk contribs m 23,245 bytes +559 Bot: Deprecating Template:Cite doi and some minor fixes undo

curprev 21:3521:35, 25 August 2015 Leyffer talk contribs m 22,686 bytes +411 If the intermediate residual in Step 6(7) becomes small (or worse zero), then the rest of the method is not well-defined (because s=0 implies t=As=0, and the quotient in Step 9 is no defined. See also van der Vorst, Cambridge, 2009, p.138 undo Tag: Visual edit

curprev 10:0710:07, 31 May 2015 AnomieBOT talk contribs m 22,275 bytes +14 Dating maintenance tags: {{Technical}} undo
curprev 09:4709:47, 31 May 2015 Nczempin talk contribs 22,261 bytes +15 →top: could use with some additional material that is not simply mathematical derivations, such as: what is it used for, what's the historical context, etc. undo

curprev 09:0309:03, 17 March 2014 82.130.106.96 talk 22,246 bytes +3 No edit summary undo

curprev 08:4008:40, 12 March 2014 Kku talk contribs m 22,243 bytes +4 →BiCG in polynomial form: l Recurrence relation undo

curprev 03:1403:14, 15 January 2014 Monkbot talk contribs m 22,239 bytes −13 →References: Fix CS1 deprecated date parameter errors undo

curprev 16:1216:12, 11 November 2013 Kxx talk contribs m 22,252 bytes −1 →Determination of BiCGSTAB constants: fix bad {{math}} undo

curprev 23:1023:10, 20 March 2013 Addbot talk contribs m 22,253 bytes −87 Bot: Migrating 2 interwiki links, now provided by Wikidata on d:q4903720 undo

curprev 09:4509:45, 13 November 2012 147.52.41.145 talk 22,340 bytes −1 →Preconditioned BiCGSTAB undo
curprev 09:4509:45, 13 November 2012 147.52.41.145 talk 22,341 bytes −1 →Unpreconditioned BiCGSTAB undo

curprev 21:3221:32, 10 May 2012 Helpful Pixie Bot talk contribs m 22,342 bytes 0 ISBNs (Build KE) undo

curprev 07:5307:53, 13 May 2011 Kxx talk contribs m 22,342 bytes 0 reverted precomposed characters; corrected placement of combining diacritical marks undo
curprev 07:1107:11, 13 May 2011 Kxx talk contribs m 22,342 bytes 0 →Unpreconditioned BiCGSTAB: use precomposed characters undo
curprev 07:1007:10, 13 May 2011 Kxx talk contribs m 22,342 bytes 0 →Preconditioned BiCGSTAB: use precomposed characters undo

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