Hi there,
i am trying to "solve" an inequality (actually looking for the area of possibel solutions), I have tried this.
syms I I_opta=0.1735;b=0.1967;c=0.2137;d=0.2856;eq_1=I>=0;eq_2=I_opt>=0;eq_3=I<=4.67;eq_4=I_opt<=4.67;eq_5=a/c*exp(b*I-d*I_opt)*(1-a*exp(b*I))/(1-c*exp(d*I_opt))>1;eqns=[eq_1 eq_2 eq_3 eq_4 eq_5];S=solve(eqns,[I I_opt])
Which is actually inequality 5, with 0<=I,I_opt<=4,67;
I get a struct with zero size, although it seems there are solutions for the equations, do you know why?
thanks!!
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