MATLAB: I have two equations that are difficult to solve, so I am using fsolve to get the sol. But while running the program I encountered the error .Please help me or tell other way to solve these equations.

fsolveOptimization Toolbox

first equ; 
 F1- (0.41*f1^2 + f1(1-f1))/(0.41*f1^2 + 2*f1(1-f1) +0.04*(1-f1)^2)=0
second equ; 
0.589/(0.589 - 31.71/(104-51*F1)) - ((2826*4.479*E-7)*(176*62500*f1^2 + 2*62500*429.27*f1 - 2*62500*429.27*f1^2 + 2500*429.27 + 2500*429.27*f1^2 - 2*2500*429.27*f1))/(429.27*(1-f1) + 62500*f1) -1
;
program;;;;
function fcns  = eqs(z)
F1 = z(1);
f1 =z(2);
fcns(1) = F1- (0.41*f1^2 + f1(1-f1))/(0.41*f1^2 + 2*f1(1-f1) +0.04*(1-f1)^2);
fcns(2) = 0.589/(0.589 - 31.71/(104-51*F1)) - ((2826*4.479*E-7)*(176*62500*f1^2 + 2*62500*429.27*f1 - 2*62500*429.27*f1^2 + 2500*429.27 + 2500*429.27*f1^2 - 2*2500*429.27*f1))/(429.27*(1-f1) + 62500*f1) -1 ;
end
guess =[0.28 0.0244 ];
result = fsolve(@eqns,guess)

Best Answer

guess = [0.28 0.0244];
result = fsolve(@eqs,guess)
function fcns  = eqs(z)
F1 = z(1);
f1 = z(2);
fcns(1) = F1- (0.41*f1^2 + f1*(1-f1))/(0.41*f1^2 + 2*f1*(1-f1) +0.04*(1-f1)^2);
fcns(2) = 0.589/(0.589 - 31.71/(104-51*F1)) - ((2826*4.479*1E-7)*(176*62500*f1^2 + 2*62500*429.27*f1 - 2*62500*429.27*f1^2 + 2500*429.27 + 2500*429.27*f1^2 - 2*2500*429.27*f1))/(429.27*(1-f1) + 62500*f1) -1 ;
end
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