Sharp EL-5230, EL-5250 operation manual Complex Number Calculations, Complex Number Entry, Chapter

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 (rθ appears.)

Complex Number Entry

1 Rectangular coordinates are entered as follows:

x-coordinate + y-coordinate Q

or x-coordinate +Qy-coordinate

2 Polar coordinates are entered as follows:

rRθ

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.

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