Sharp EL9900C EL-9900C - Page 90

Chapter 5: Advanced Calculations - Advanced Keyboard Note: Example • Calculate (3 + 4i) × (4 - 6i) 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. 80