Sharp EL-5230 User Manual

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.)

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.