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What calculator do you use ?
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alm:
(Almost?) all scientific calculators have an engineering mode that will make sure the exponent is always a multiple of 3, so 10,000 would be returned as 10 E+3. Is this really any harder to read than 10 k? I convert between k and 103 without even thinking about it.

The only advantage of 10 k + 10 mili that I see is that it saves one keystroke compared to 10E3 + 10E-3 (the units both being shift functions), since you don't have to type the minus. This might be a slight advantage if you often work with numbers < 1, eg. 10p + 1n - 1000a.
siliconmix:
casio fx - 82.needs a clean under all the buttons mind.i cant do any math with a "3" in it until i clean it.three's are overated anyway imho  ;D
nanofrog:
Started with Casio way back, but then I discovered the HP11C, and haven't looked back since. Still use it daily, and picked up a 50g to replace a broken 48SX a few years ago (like to be able to see the stack + has units & unit conversions).
meffe:
Speaking of Casio, i also have this marvelous "calculator": http://www.vintagesynth.com/casio/vl1.php

The best about HP are their tutorials and manuals. They are fantastic.
EEVblog:

--- Quote from: saturation on April 17, 2012, 09:04:35 pm ---For 30 years I carried an FX98 as my go-to Casio until I found out it was rare, and losing it would be irreplaceable, if not terribly expensive.  So several years ago, I loaded up on FX-260s and leave the FX-98 at home.

I last saw an FX98 sold on eBay for over $300.
For Casio-nuts:
http://www.casio-calculator.com/Download/Collectors/CasioCollectors.html

--- End quote ---

I sold my BROKEN Casio CFX-400 scientific calculator watch for $400 cash to someone in the US before the whole ebay collecting craze took off.
That model is worth even more now, up into the 4 figures for a watch that I paid $20 for at K-Mart back in the 1980's.

Dave.
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