Casio CFX-9850G PLUS - Before Trying to Draw a Graph; Entering the Graph Mode

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4-1 Before Beginning a Complex Number
Calculation
Before beginning a complex number calculation, press K3 (CPLX) to display
the complex number calculation menu.
•{i} ... {imaginary unit i input}
•{Abs}/{Arg} ... obtains {absolute value}/{argument}
•{Conj} ... {obtains conjugate}
•{ReP}/{ImP} ... {real}/{imaginary} part extraction