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Oct 24, 2024 at 16:53 history edited Michael E2 CC BY-SA 4.0
Improved formatting
Apr 15, 2023 at 20:06 comment added Davi This is a great answer, it solved my issue. However, I would like to point out that the FindRoot documentation (Mathematica 13.2.1) is contradictory. It states that "FindRoot continues until either of the goals specified by AccuracyGoal or PrecisionGoal is achieved.". You pointed out this is not he case. For FindRoot there are two independent conditions: even if the PrecisionGoal condition is achieved there will be an error if AccuracyGoal is too high. NDSolve, for instance, does not have this behaviour. So it seems that there is a problem in the documentation.
May 16, 2019 at 10:54 comment added Michael E2 @KraZug True, my focus was on using the options to achieve some goal. The use-case where I most commonly lower the goals is in a multidimensional NIntegrate[]
May 16, 2019 at 5:12 comment added SPPearce Very nice answer. But one thing you sort of hint at but don't detail, is that these two options can be lowered to produce an answer faster when you only need a rough guess, for instance in FindRoot, while still using the faster machine precision.
Jan 8, 2018 at 3:44 history edited Michael E2 CC BY-SA 3.0
Proofreading
Nov 16, 2017 at 11:49 comment added Jojo This was a very informative, well-written article which has cleared up a lot of my misunderstandings with these things. Thank you Michael E2.
Sep 21, 2017 at 18:40 history edited Michael E2 CC BY-SA 3.0
Clarification, fixed grammar
Apr 13, 2017 at 12:56 history edited CommunityBot
replaced http://mathematica.stackexchange.com/ with https://mathematica.stackexchange.com/
Mar 6, 2017 at 11:09 history edited Michael E2 CC BY-SA 3.0
Fixed error
Mar 5, 2017 at 19:26 history answered Michael E2 CC BY-SA 3.0