using calculator to solve complex numbers equations (matrix creamer's rule) - YouTube
fx-991EX | Black Scientific Calculator | CASIO
For many calculators if you input "the square root of -1", you will get out "domain error" Input Output This was done with a TI-30XS calculator. - ppt download
Quadratic Formula Calculator
How to find the Square root value of Complex number Using Scientific calculator (fx-991ms) - YouTube