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What's your favorite calculator?
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Black Phoenix:
Not favourite calculator but I saw this Image and I wanted to know if any of the users know which brand is that one:



I remember having one like that at home, with a Vacuum Fluorescent Display but i don't remember if it was a HP or a Texas Instruments. Or even if it was other brand, but I remember being exactly like that one.

Unfortunately it wasn't mine, it was my uncle's one and he took it home like 25 years ago. Also I remember that I didn't work, something was broken.
bd139:

--- Quote from: VK3DRB on August 17, 2019, 08:45:44 am ---
--- Quote from: hwj-d on August 12, 2019, 02:00:19 pm ---
--- Quote from: eugenenine on August 12, 2019, 01:01:59 pm ---
--- Quote from: NANDBlog on August 12, 2019, 08:49:48 am ---excelIt's a beauty, does all kinds of engineering stuff.

--- End quote ---

Until you find all the issues/bugs in it.  Open/LibreOffice Calc is a lot better

--- End quote ---

YESSS   :-+
 
(but go for LibreOffice)

--- End quote ---

Except Excel has one BIG advantage over other spreadheet programs. In Excel you can plot a graph and get it to assign a nth order equation to it. This is very useful when you want to make an equation to programmatically derive the temperature from a table published by a thermistor vendor. The equation in an embedded micro can sometimes be better and more accurate than using a lookup table. Using an equation works fabulously with Labview or C/C++/C# on a PC. I know you can also use Matlab to get an equation. Try and do that with OpenOffice or LibreOffice Calc!

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Sounds like an application for curve fitting. I've done the same thing for power sensor calibration in LibreOffice. It does the usual linear, exponential and polynomial fits. The calibration constants were then cut and pasted right into the AVR code  :-//
shakalnokturn:
I have the same TI-82 (old version) since high-school 25 years ago, my favourite as I know my way around it best. Also have a TI-89 and a couple of new HP48GX's I bought because they were selling cheap at the time (I'd still be making profit if I sold them today), never really got used to using these...
SiliconWizard:

--- Quote from: bd139 on August 30, 2019, 09:40:31 am ---Sounds like an application for curve fitting. I've done the same thing for power sensor calibration in LibreOffice. It does the usual linear, exponential and polynomial fits. The calibration constants were then cut and pasted right into the AVR code  :-//

--- End quote ---

Just use SciDavis for any kind of data representation and/or curve fitting. It's lightweight, open source, cross-platform, exports to many file formats including SVG and EPS...
Black Phoenix:

--- Quote from: Black Phoenix on August 30, 2019, 09:20:39 am ---Not favourite calculator but I saw this Image and I wanted to know if any of the users know which brand is that one:

I remember having one like that at home, with a Vacuum Fluorescent Display but i don't remember if it was a HP or a Texas Instruments. Or even if it was other brand, but I remember being exactly like that one.

Unfortunately it wasn't mine, it was my uncle's one and he took it home like 25 years ago. Also I remember that I didn't work, something was broken.

--- End quote ---

Update about this one: After a lot of search, I found the Model:

Texas Instruments TI-1250
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