MATLAB: Unable to find explicit solution

MATLAB

syms b0 b1 x s a n
eqn=b0*(1-(b1/(b1+x*(1-s)))^a)==x+n
solve(eqn, x)

Output:

Warning: Unable to find explicit solution. For options, see help. 
> In sym/solve (line 317)

How can i get answer with 'x'?

i want:

x = ....

Thanks!

Best Answer

This warning message shows that MATLAB is not able to find an analytical solution for your equation. You need to substitute the values of b0 b1 x s a n and find a numerical solution using fsolve() or vpasolve().

Related Solutions

MATLAB: Solving system of non linear equations

Those "sym" need to be "syms"

syms x a1 a2 a3 a4 u1 u2 u3 u4

also, you need to define u as

u(x) = a1+a2*x+a3*(x^2)+a4*(x^3);

MATLAB: “Cannot find explicit solution”

Sometimes, you have to lead it gently by the hand:

syms x n b r a 
eqn = x*(1+n)==(b/(b+1))*r*(1-a)*x^a ;
eqn = rewrite(eqn,'log');
solx = solve(eqn, x, 'IgnoreAnalyticConstraints',1)
pretty(solx)
solx =
(-((b + 1)*(n + 1))/(b*r*(a - 1)))^(1/(a - 1))
                         1
                       -----
  /   (b + 1) (n + 1) \a - 1
  | - --------------- |
  \     b r (a - 1)   /

Best Answer

Related Solutions

MATLAB: Solving system of non linear equations

MATLAB: “Cannot find explicit solution”

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