Using the symbolic solver on a system of linear equations with complex numbers for coefficients. The catch is, all complex numbers have to be entered in rectangular form. I have gone very quickly over the writing of the two KCL equations, as this is something that has been worked on to exhaustion elsewhere in this series of videos. The point of this particular video is the use of the HP-50g and HP-49g+ to solve the system of equations with complex numbers through the symbolic solver (in another video, I have already shown how to use matrices with complex numbers to solve systems of equations).