Hi Marc,
The reason you are seeing an empty solution is because the set of equations you are trying to solve does not have a valid symbolic solution. Given two equations with two variables, you will get a discrete set of solutions. Let's say you had two equations with 3 variables (x,y and z).
syms x y z
eqns = [x + y + z == 0, x^2 + y^2 + z^2 == 1];
To compute the solution of above equations symbolically, you need to specify which variable to serve as the "parameter". For example, to compute solution in terms of z (parameter), seek solutions for x and y.
solv = solve(eqns,x,y)
