All Forums  Origin Forum for Programming  Forum for Origin C  Fitting of differential equation result

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by Alex-qwerty[/i] [br]Origin Ver 8.0 SR6, WinXPSP2. How to fit my function if it is the result of differential equation solution? I have the differential equation like dF/dt=MyFun(F,t,T,P,A,B,C...) where t,T,P are variables and A,B,C are parameters. I have experimental data at four columns: t,T,P,Fexper. I know how to solve my differential equation using NAG library and obtain Fteor at parameters A,B,C and at the same points as in experimental data of t,T,P. Now I wand to fit Fteor to Fexper by variation of A,B,C... There is no analytical formula for F(t,T,P,A,B...) How can I solve my problem? [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.