Many computer science students face difficulties and problems with MATLAB and are looking for help to solve these challenging problems. If you are like many students, you face challenges completing all of your schoolwork. The separation makes not sense from the perspective of a user.Meet Deadlines with the Help of MATLAB Solver Online For the life of me I don't understand why they can't better unify these parts of Matlab. While this is not a bug per se, The MathWorks still might be interested in this difference in behavior and poor performance of sym/solve (and the underlying symobj::solvefull) relative to MuPAD's solve. Try plotting this function along with fpp. For those you could try: s = feval(symengine,'solve',fpp(x)>0,x,'Real') The above is not going to directly help with your inequalities other than telling you where the function changes sign. My answer to this question provides other way that various MuPAD solvers can be used, particularly if you can isolate and bracket your roots. S = feval(symengine,'numeric::solve',fpp(x)=0,x,'AllRealRoots') In particular is the 'AllRealRoots' option. MuPAD's numeric::solve function has several additional capabilities. However, one can access the features of MuPAD from within Matlab. Instead, it returns only the first solution that it finds.' Some equations can have an infinite number of numeric solutions (e.g., periodic equations), and thus, as per the documentation: 'The numeric solver does not try to find all numeric solutions for equation.

When this fails, it tries to find a numeric solution. Other solutions or suggestions for solving these problems are welcomed.Īs I indicated in my comment above, sym/solve is primarily meant to solve for analytic solutions of equations. But, I have no idea how I can generally find initial guessed values to obtain all solutions, which is my second question. I know that vpasolve with some initial guess can handle this. I am not satisfied since all solutions are not returned (they are approximately -1.5056, 1.5056, -0.5663 and 0.5663 obtained from WolframAlpha). (This is related to this question.) Moreover, when I try to solve the equation solve(fpp(x)=0,x,'Real',true) The first question: Is it possible to force Matlab's solve to return the set of all solutions?

Matlab solve