I want to solve an equation with the symbolic math toolbox. This equation also contains derivatives. E.g.:
eqn1 = 0 == x + y + diff(f(t),t)
sol1 = solve(eqn1, diff(f(t),t));
But I always get an empty structure as solution. Is there any way to do this or do I have to convert the diff(f(t),t) into another symbolic variable and convert it back to the derivative after I solved the equation?