Question about Texas Instruments TI-89 Calculator

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Doing Hex Calculations.

Hey, I have recently been doing many Hexadecimal calculations as part of some programming I'm doing, and I thought that the TI-89 Titanium would be a good choice of calculator for this, however, I have discovered that there are discrepencies between the actual answers, and the answer the calculator shows (namely that it only shows the final 8 bytes of any answer).

For Example:
[1A56B091] x [41C64E6D] = [6C469F301DB5BBD]

However the Calculator shows:
[1A56B091] x [41C64E6D] = [1DB5BBD]

I was wondering if there was a setting or something that I can alter in order to make the calculator display a full answer, rather than just the final 8 bytes? Any help would be greatly appreciated.

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Seems your close to hitting the limit to the actual working decimal numbers too. Because everything is terminated after that. I'd like to help you but, however you got your example number, just assimulate it to the Ti89. I'm pretty sure I could add series aiding like that by writing and running a program.

Posted on Sep 14, 2009


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The [MODE] key can be used to select the modes described below.
Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here.
1) Calculation Modes
Before performing a calculation, you first need to select the appropriate calculation mode.
COMP: Basic arithmetric calculations
(arithmetic operations, trigonometric functions, etc.)
COMPLEX: Complex number calculations
SD: Single-variable statistical calculations
(sample standard deviation, etc.)
LR or REG: Paired-variable statistical calculations
(linear regression statistical calculations, etc.)
BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations
MAT: Matrix calculations (determinants, etc.)
VCT: Vector calculations
EQU: nth degree equations, simultaneous equations
2) Display Settings
Use these settings to control how calculation results are displayed.
Note that changing the Fix and Sci settings does not affect internal calculation results.
Norm: Exponential display format and cancels the currently configured Fix and Sci settings.
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