I have differnt coodinate after use fmincon
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jong eun kim
am 4 Dez. 2022
Kommentiert: jong eun kim
am 4 Dez. 2022
i want to get a coordinate for maximum distance which form is distance =10.361+0.40125.*a-0.34875.*c-0.78375.*a.*c i plot this surface, and i have (1,-1) is the best coordinate and the maximum is 11.8947 but when i do this for fmincon, x0=[0 0]; lowerbound=[-1 -1]; upperbound =[1 1]; function f = distance(x) A=x(1); C=x(2); f= (-1).*(10.361+0.40125.*A-0.34875.*C-0.78375.*A.*C); end function [c ceq]=const(x) A=x(1); C=x(2); c=A+C-2; ceq=[]; end the answer is x=1 y=1 , not a x=1 y=-1!!!!!! plz help me
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Torsten
am 4 Dez. 2022
Both Matt J and I already changed the settings.
And the result is as you expect: A = 1 and C = -1.
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Matt J
am 4 Dez. 2022
x0=[0 0]; lb=[-1 -1]; ub =-lb;
fmincon(@distance,x0,[1,1],2,[],[],lb,ub)
function f = distance(x)
A=x(1); C=x(2); f= (-1).*(10.361+0.40125.*A-0.34875.*C-0.78375.*A.*C);
end
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