Freemat

Objective

Learn how to use freemat to solve complex number equeation

 

Calculation by hand

Sovle by freemat:

Conclusion
Freemat is a very useful tool to solve complex equation. In AC circuit, the impedance usually contains a imaginary part and as I showed, it is takes many steps to solve this kind of problem by hand. Freemat let this problems become very easy.