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Chapter 6
Complex Number
Calculations
The CPLX mode is used to carry out addition, subtraction, multiplication, and
division of complex numbers. Press b 4 to select the CPLX mode.
Results of complex number calculations are expressed in two modes:
1 @ E: Rectangular coordinates mode (xy
appears.)
2 @ u: Polar coordinates mode (r
θ
appears.)
Complex Number Entry
1 Rectangular coordinates are entered as follows:
x-coordinate + y-coordinate Q
or x-coordinate + Q y-coordinate
2 Polar coordinates are entered as follows:
r R θ
r: absolute value
θ:argument
• On selecting another mode, the imaginary part of any complex number
stored in the M memory will be cleared.
•A complex number expressed in rectangular coordinates with the y-value
equal to zero, or expressed in polar coordinates with the angle equal to
zero, is treated as a real number.
• Press I 0 to return the complex conjugate of the specified complex
number.