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The maximal desired order of differentiation is determined by the parameterMXINDX which the user sets in the GUI and which is stored in the structurearray (see section 4).Note that symdiff creates new files in the current directory. In case of linearproblems three files are generated. These are named name1.m, name2.m andname3.m. If one is considering nonlinear problems two files are created whichare named name1.m and name2.m. In addition, another file called hdname1.m(prefix ’hd’ plus the name chosen by the user) might be created if one usedthe option to correct guessed initial values. This third file implements thehighest desired derivative of F in a way that the function fsolve can use it.In fact all these functions implemented in these files are referenced when areturned handle is evaluated. So deleting or overwriting such a file destroysor changes the according handle, too. Naturally, the automatically generatedfiles to be used with GELDA or GENDA satisfy the implementation rulesimposed by the according Fortran code (see section 6).• solvedaesolves general DAEsSyntax[T, X, xprime, cval, output, civ] = solvedae(s, edif, adif, ...fdif, x0)[T, X, xprime, cval, output, civ] = solvedae(s, edif, adif, ...fdif, x0, tspan)[T, X, xprime, cval, output, civ] = solvedae(s, fdif, dfdif, x0)[T, X, xprime, cval, output, civ] = solvedae(s, fdif, dfdif, ...x0, tspan)ArgumentsThe following table describes the input arguments to the solver solvedae.8