Sharp EL-5230 User Manual download pdf (Page 75)

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

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.

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Sharp EL-5230 User Manual Page 75