Solve a matrix-form equation

Dear All,

I have a matrix of constants that gives me the constants for my equation. I need to know how to solve that equation in MATLAB. Assume the following is my matrix of constants :

    Constants= [ 0.05888460    1.325     1
                -0.06136111    1.87      1
                -0.002650473   2.5       2
                 0.002731125   2.8       2
                 0.001802374   2.938     2.42
                -0.001150707   3.14      2.63
                 0.00009588528  3.37     3
                -0.000000110904  3.75    4
                 0.0000000001264403   4   5];

and the equation comes from the following sum:

 Sum=1;     
 for i=1:9
     Sum= Sum + (Constants(i,1) * ((100/333)^( Constants(i,2))) * ((x)^(Constants(i,3))));
 end

basically the equation I want to solve is :

   eqn = Sum == 1.0259;
   solx = solve(eqn, x)

I do not know why I could not use

   syms x

command to define an equation! Please help, I appreciate your attention! Best

Answer 1

[Azzi Abdelmalek]

s=sum(Constants(:,1) .* (100/333).^Constants(:,2) .* x.^Constants(:,3) )
sol=solve(s)

[Homayoon]

it gives me an error! undefined variable x!

[Homayoon]

i fix it! thanks