am obtaining errors while solving equations by fsolve
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
sabarish
le 28 Juil 2014
Commenté : Star Strider
le 8 Août 2014
my coding function F = myfun(x) F=[(((x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077)))/((1+(x(5)*(1+x(1)+x(2)))*0.15335))^2); ((((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2)+(x(2)*x(4))*(x(4)-1)*(x(4)-2))*0.15335)+2*x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.034077+(x(5)*(1+x(1)+x(2)))*(-0.15335))*((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^2)-(2*(((x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077)))/((1+(x(5)*(1+x(1)+x(2)))*0.15335))^3)); ((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)))*0.15335+(3*(x(5)*(-x(1)*x(3)*(-x(3)-1))+((x(2)*x(4))*(x(4)-1)))*0.034077)+(3*((x(5)*(-x(1)*x(3)))+(x(2)*x(4)))*(-0.15335))+((x(5)*(1+x(1)+x(2)))*(-0.383645))*((1+(x(5)*(1+x(1)+x(2)))*0.15335)^2)-(6*(2*((x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+(x(5)*(1+x(1)+x(2))*0.034077)))*((((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2)+(x(2)*x(4))*(x(4)-1)*(x(4)-2))*0.15335)+2*x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.034077+(x(5)*(1+x(1)+x(2)))*(-0.15335))*((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^2)-(6*(((x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077))))/((1+(x(5)*(1+x(1)+x(2)))*0.15335))^4)); (((x(5)*((-x(1)*x(3))*(-x(3)-1)*(-x(3)-2)*(-x(3)-3))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)*(x(4)-3)))*0.15335)+(4*(x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)))*0.034077)+(6*(x(5)*(-x(1)*x(3)*(-x(3)-1))+((x(2)*x(4))*(x(4)-1)))*(-0.15335))+(4*((x(5)*(-x(1)*x(3)))+(x(2)*x(4)))*(-0.383645))+(((x(5)*(-x(1)*x(3)))+(x(2)*x(4))*(-0.5437)))*(((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^3))-((6*((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2)+(x(2)*x(4))*(x(4)-1)*(x(4)-2))*0.15335)+2*x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.034077+((x(5)*(1+x(1)+x(2)))*(-0.15335)))^2)*((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^2)-(8*(((x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077))))*((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)))*0.15335+(3*(x(5)*(-x(1)*x(3)*(-x(3)-1))+((x(2)*x(4))*(x(4)-1)))*0.034077)+(3*((x(5)*(-x(1)*x(3)))+(x(2)*x(4)))*(-0.15335))+((x(5)*(1+x(1)+x(2)))*(-0.383645))*((1+(x(5)*(1+x(1)+x(2)))*0.15335)^2)-(6*(2*((x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+(x(5)*(1+x(1)+x(2))*0.034077)))*((((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2)+(x(2)*x(4))*(x(4)-1)*(x(4)-2))*0.15335)+2*x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.034077+(x(5)*(1+x(1)+x(2)))*(-0.15335))*((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^2)-(6*(x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077)))))/(((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^5)); ((((x(5)*((-x(1)*x(3))*(-x(3)-1)*(-x(3)-2)*(-x(3)-3)*(-x(3)-4))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)*(x(4)-3)*(-x(4)-4)))*0.153355)+(5*(x(5)*((-x(1)*x(3))*(-x(3)-1)*(-x(3)-2)*(-x(3)-3))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)*(x(4)-3)))*0.034077)+(10*(x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)))*(-0.15335))+(10*(x(5)*(-x(1)*x(3)*(-x(3)-1)+((x(2)*x(4))*(x(4)-1)))*(-0.383645)))+(5*((x(5)*(-x(1)*x(3)))+(x(2)*x(4)))*(-0.5437)+((x(5)*(1+x(1)+x(2)))*(-0.927345))))*((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)^4)-(20*(((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2)+(x(2)*x(4))*(x(4)-1)*(x(4)-2))*0.15335)+2*x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.034077+(x(5)*(1+x(1)+x(2)))*(-0.15335)))+(((x(5)*((-x(1)*x(3))*(-x(3)-1)*(-x(3)-2)*(-x(3)-3))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)*(x(4)-3)))*0.15335)+(4*(x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)))*0.034077)+(6*(x(5)*(-x(1)*x(3)*(-x(3)-1))+((x(2)*x(4))*(x(4)-1)))*(-0.15335))+(4*((x(5)*(-x(1)*x(3)))+(x(2)*x(4)))*(-0.383645))+(((x(5)*(-x(1)*x(3)))+(x(2)*x(4))*(-0.5437)))*(((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^3))-((6*((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2)+(x(2)*x(4))*(x(4)-1)*(x(4)-2))*0.15335)+2*x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.034077+((x(5)*(1+x(1)+x(2)))*(-0.15335)))^2)*((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^2)-(8*(((x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077))))*((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2))+((x(2)*x(4))*(x(4)-1)*(x(4)-2)))*0.15335+(3*(x(5)*(-x(1)*x(3)*(-x(3)-1))+((x(2)*x(4))*(x(4)-1)))*0.034077)+(3*((x(5)*(-x(1)*x(3)))+(x(2)*x(4)))*(-0.15335))+((x(5)*(1+x(1)+x(2)))*(-0.383645))*((1+(x(5)*(1+x(1)+x(2)))*0.15335)^2)-(6*(2*((x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+(x(5)*(1+x(1)+x(2))*0.034077)))*((((x(5)*(-x(1)*x(3)*(-x(3)-1)*(-x(3)-2)+(x(2)*x(4))*(x(4)-1)*(x(4)-2))*0.15335)+2*x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.034077+(x(5)*(1+x(1)+x(2)))*(-0.15335))*((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^2)-(6*(x(5)*(-x(1)*x(3))+(x(2)*x(4)))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077))))))/(((1+(x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335))^6))]; x0=[5,5]; fslove(@myfun,x0); end
am getting errors
my errors Error in ==> myfun at 2 F=[(((x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077)))/((1+(x(5)*(1+x(1)+x(2)))*0.15335))^2);
Error in ==> fsolve at 248 fuser = feval(funfcn{3},x,varargin{:});
Caused by: Failure in initial user-supplied objective function evaluation. FSOLVE cannot continue.
??? Input argument "x" is undefined.
Error in ==> myfun at 2 F=[(((x(5)*(-x(1)*x(3))+(x(2)*x(4))*0.15335)+((x(5)*(1+x(1)+x(2))*0.034077)))/((1+(x(5)*(1+x(1)+x(2)))*0.15335))^2); >>
kindly help me out to solve the errors
2 commentaires
Réponse acceptée
Star Strider
le 28 Juil 2014
See if:
x0=[5,5,5,5,5];
x = fsolve(@myfun,x0);
improves things.
2 commentaires
Star Strider
le 30 Juil 2014
The RecursionLimit message means that you are calling fsolve from within your function.
Remove all calls to fsolve within your function. All calls to fsolve should be outside your function, in your main script.
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