MATLAB: How to use variable variablevariables If I run det([1 2;3 4]) Matlab gives the result -2. I want to calculate det([a b;c d]) and how can I get the result ad - bc Best Answer syms a b c d;det([a b;c d]); Related SolutionsMATLAB: Isolate a variable If your input is x^2 + 2 + x then you cannot isolate x to one side of an equation, as your input is not an equation.If your input is implicitly x^2 + 2 + x = 0 then your example output of x = x^2 + 2 is incorrect: instead x = -x^2 - 2You cannot always isolate one variable -- not unless you are willing to make some restrictions on the form of the equation.If you have a polynomial as input, thenS = x^2+2+x;c = sym2poly(S);isolated_x = x * c(end-1) - S; MATLAB: Creating an empty sym variable x=sym([]) Related QuestionWhat is xout variableUndefined function or variableIs this distance variable
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