General > General Technical Chat
What calculator do you use ?
Lightages:
OK, enough of these wimpy "calculators". Its time for the real men to step up and use one of these. Just two of my sliderule collection. I have 53 of different types. These two are specialty electronics rules.
nanofrog:
--- Quote from: m12lrpv on April 18, 2012, 12:27:07 am ---One of the greatest advantages of RPN is when people ask to borrow your calculator :)
--- End quote ---
Hadn't really thought of that one as I haven't lent tools in years (too many things never returned), but good point. :D
slateraptor:
--- Quote from: Lightages on April 18, 2012, 02:38:39 am ---OK, enough of these wimpy "calculators". Its time for the real men to step up and use one of these. Just two of my sliderule collection. I have 53 of different types. These two are specialty electronics rules.
--- End quote ---
Nice. I can only imagine the look on a professor's face if a student were to bust one of those out in the middle of an exam. :P
cybergibbons:
The Casio graphics calculators have a display mode for engineering notation using m/n/p/f/k/M/G, and a menu that lets you use the function keys/soft menu at bottom of display to enter them. I admit to using them if the maths I'm doing is all framed in terms of those units.
lavo-1:
--- Quote from: slateraptor on April 18, 2012, 01:25:39 am ---
--- Quote from: lavo-1 on April 17, 2012, 09:34:25 pm ---Sorry I don't follow you question.
If I was to put in 0.005000005 [shift] [7] and then [=] it would show 5.000005 K. note (key 7 being Meg)
and the same with 5000005 [shift] [5] [=] 5.000005 K. note (key 5 being milli)
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For the HP 35s, 5.000005 K would be displayed as 5.000005e3. If I wanted to display this output in milli-units, I would press [<--] [ENG -->] once to display 5,000.005e0, and again [<--] [ENG -->] to display 5,000,005e-3
So suppose you've just performed a calculation whose result is 5.000005 K. Now suppose you would like to easily determine what this number is in milli-units. Does the calculator have a dedicated feature for performing this task similar to the [ENG <--] / [ENG -->] f'n on the 35s?
I've noticed that the engineering mode for every calculator I've used would "auto range" the engineering exponent based on a coefficient which lies between 1 <= coefficient < 1000, e.g. an absolute result of 0.1234 would be displayed as 123.4e-3, whereas an absolute result of 1.234 would be displayed unchanged.
--- End quote ---
If the answer is displayed as 5.000005 K then pressing [ENG] will give 5000.005, and again [ENG] will display 5000005 m.
I can also look at a display and understand, read the display as 5000005 -03, but just find imputing into this type of calculator in ENGINEERING mode so simple and quick. 8)
I just need to try to fix the dam thing, as I miss it so much :'(
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