Sharp EL-9900 - Manual (Page 90)

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Chapter 5: Advanced Calculations — Advanced Keyboard
Example
• Calculate (3 + 4i)
×
(4 – 6i)
Note: It is possible to input complex
numbers (i) in the real number
mode, however an error
message will return.
Functions available for complex number calculations
The following function keys are available for complex number
calculations without the limits existing in the real number calculations.
y, x, l, I, 0, @, a, +,
_
The following MATH menu functions are also available for
complex number calculations.
abs(, round(, ipart, fpart, int
4. More Variables: Single Value Variables and
LIST Variables
Additional single value variables (from A to Z, and
θ) may be accessed. In addition, six
LIST variables (from L1 to L6) are readily accessible through the second function of
the Advanced Keyboard.
To save a list of numbers, follow the procedure below:
1. On the Calculation screen ( #), create a list of numbers (“1,
2, 3”, in this example). Separate numbers with a comma
( ,), and group the numbers with braces ({ and }).
2. Press R, then select
one of the six LIST variables.
To store the list in “L1”, press
@ 1 to call up the
LIST variable.
3. Pressing E will store the
list in the LIST variable. Note
that this procedure will
overwrite the list previously
stored in the LIST variable.
Refer to Chapter 9 “LIST Features” to learn more about how LIST
variables can be utilized.