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How does the fsolve function find the solution?

asked 2023-02-01 10:40:41 +0200

I would like to know how the fsolve function finds the solution. Is it a method like Newton's method?

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Also asked in Japanese at Ask Sage question 66174.

slelievre gravatar imageslelievre ( 2023-02-01 11:38:29 +0200 )edit

fsolve dosn't exist in Sage.

  • Do you mean find_root ?

  • Do you use an optional package ?

Emmanuel Charpentier gravatar imageEmmanuel Charpentier ( 2023-02-01 12:06:44 +0200 )edit

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answered 2023-02-01 13:19:23 +0200

Emmanuel Charpentier gravatar image

I suppose you're talking about scipy.optimize.fsolve, which is itself a wrapper for scipy.optimize.root. Iss documentation lists (but does-not describe) the various available methods, the default being hybr, which

uses a modification of the Powell hybrid method as implemented in MINPACK [1].

I won't paraphrase the related Wikipedia entry, but point out this previous question, which might be useful...


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Asked: 2023-02-01 10:40:41 +0200

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Last updated: Feb 01 '23