To enter a complex number, Entering complex numbers -12, Entering complex numbers – HP 48g Graphing Calculator User Manual
Page 154
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instead.) In polar form, the magnitude and phase angle are separated
by a comma and angle sign (¿). (The angle is based on the current
angle mode: Degrees, Radians, or Grads.) Regardless of how complex
numbers are displayed, the HP 48 stores them internally in
rectangular
form.
Display Modes
Rectangular
Polar
(a.b)
(r. ^e)
Entering Complex Numbers
You can enter complex numbers using either rectangular coordinates
or polar coordinates.
To enter a complex number:
■ To enter rectangular coordinates, press
S)0>
enter the
coordinates separated by fSPC) or
S)0,
and press (ENTER).
■ To enter polar coordinates, press
S)0>
enter the coordinates
separated by (3©> and press (ENTER).
The internal rectangular representation of all complex numbers has
the following effects op polar numbers:
■ 0 is normalized to the range ±180° (±7r radians, ±200 grads).
■ If you key in a negative r, the value is made positive, and
0
is
increased by 180° and normalized.
■ If you key in an r of 0,
6
is also reduced to 0.
12-12 Functions of Real and Complex Numbers