Sharp EL-9900 - Manual (Page 91)

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Chapter 5: Advanced Calculations — Advanced Keyboard
5. TOOL Menu
The TOOL menu contains items to help calculating in different number systems, as
well as to help solve both linear and polynomial equation. Press @ V to
access the TOOL menu. Press the # key (or @ q) to escape from the
menu.
A NBASE Calculations can be performed in different number base systems,
while simultaneously converting the calculation result into
hexadecimal, decimal, octal, and binary systems.
1. While this menu item A
NBASE is selected, press
the E key. The NBASE
tool opens, with the cursor
set at HEX: (hexadecimal).
2. Type 1B | 9, for example. When entering the hexadecimal
B, simply press the B key; using the A key will call up
the variable B instead.
3. When done entering the
hexadecimal expression,
press E. The calculation
result will be displayed in
three other number base
systems, as well as in
hexadecimal format.
Note: Numerical values in binary, octal, and hexadecimal modes can be
expressed in the following number of digits:
Binary: 16 digits
Octal: 10 digits
Hexadecimal: 10 digits
If you enter a number exceeding the range specified above for
calculations or conversions, the calculator will return an error.
If the answer exceeds the above range, the calculator will also
return an error.
Decimals can be used for DEC mode only ( . cannot be used
in the other modes). If you convert decimal values to binary,
octal, or hexadecimal number, the decimal part is discarded and
only the integer part is converted.
When numerical values of binary, octal, and hexadecimal modes
are negative, the display is switched to complements of 2.