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From: | Doug Stewart |
Subject: | [Octave-bug-tracker] [bug #46230] Interval error: 'mpfr_function_d' undefined |
Date: | Fri, 16 Oct 2015 21:47:20 +0000 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36 |
URL: <http://savannah.gnu.org/bugs/?46230> Summary: Interval error: 'mpfr_function_d' undefined Project: GNU Octave Submitted by: dastew Submitted on: Fri 16 Oct 2015 21:47:18 GMT Category: Octave Forge Package Severity: 3 - Normal Priority: 5 - Normal Item Group: Regression Status: None Assigned to: None Originator Name: Doug Stewart Originator Email: Open/Closed: Open Discussion Lock: Any Release: dev Operating System: GNU/Linux _______________________________________________________ Details: This code was working and now gives an error. % this is just a formula to start with % have fun and change it if you want to. f=@(x) x.^2 +3*x-1 + 5*x.*sin(x); % the next 2 line take the Anonymous function into a symbolic formula syms x; ff=formula(f(x)); % now calculate the derivative of the function ffd=diff(ff); % and convert it back to an Anonymous function df=function_handle(ffd) fzero (f, infsup (-15, 10), df) gives the following results error: 'mpfr_function_d' undefined near line 56 column 5 error: called from mid at line 56 column 3 fzero>findroots at line 139 column 7 fzero at line 126 column 6 ttt554 at line 14 column 1 _______________________________________________________ Reply to this item at: <http://savannah.gnu.org/bugs/?46230> _______________________________________________ Message sent via/by Savannah http://savannah.gnu.org/
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