Sharp EL-9900 operation manual More Variables Single Value Variables and List Variables

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

@1to call up the LIST variable.

3.Pressing Ewill 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.

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