MATLAB: Explicit solution could not be found.. > In dsolve at 194 please let me know what to do. here is my code : >>sums u(t) v(t) >>ode1= diff(u)==u^2/v – u >>ode2= diff(v) == u^2-v >>odes=[ode1;ode2] Best Answer An analytic (symbolic) solution does not exist. You must us a numeric solver.The Code —syms T t u(t) v(t) u0 v0 Y Du = diff(u);Dv = diff(v);ode1 = Du == u^2/v - u;ode2 = Dv == u^2-v;[ode_vf, ode_subs] = odeToVectorField(ode1,ode2);ode_fcn = matlabFunction(ode_vf, 'vars',{T,Y});tspan = linspace(0, 10, 150);icv = [0; 0]+sqrt(eps);[t,y] = ode45(ode_fcn, tspan, icv);figure(1)plot(t, y)grid Related SolutionsMATLAB: Getting an error solving differential equation “free variable must be included in vars” You haveode_fcn = matlabFunction(ode_vf, 'vars',{T,Y});but your ode_vf does not include any variable named T; it includes a variable named t (lower-case)ode_fcn = matlabFunction(ode_vf, 'vars',{t,Y}); MATLAB: Error as Function definitions are not permitted in this context. You have two options:function MainA= 1;B= 2;tspan=[0 5];y0 = [0 0.01];[t,y]= ode15s(@(t,y) odefcn(t,y,A,B), tspan, y0);plot(t,y(:,1),'-o',t,y(:,2),'-.' )endfunction dydt = odefcn(t,y,A,B)dydt = zeros(2,1);dydt(1) = y(2);dydt(2) = (A/B)*t*y(1);endSave the above lines in the m file and name it Main.m and run.Or save the odefcn function alone in as function in file odefcn.m and call it file. Related QuestionError in ODE 45: MYODE must return a column vector.
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