Qalculate!

[GreyGeek]

Just read about this MARVELOUS and powerful calculator at http://maketecheasier.com/qalculate-...nux/2010/10/15

It's a keeper!

[Qqmike]

Re: Qalculate!

Oh Jeez
if only folks would read my how-to's (such as they may be)

Section 2 of
-- The dd Command
http://kubuntuforums.net/forums/inde...opic=3090824.0

very basic/into tutorial for ...

Section 2 Tools for doing your own experiments
Some conclusions: result of dd copy and notrunc, sync
Doing your own experiments to learn
Creating test files, Looking at your results
Useful Linux device files
/dev/sdx, /dev/zero, /dev/null, /dev/urandom, /dev/mem
Hexadecimal numbers
Qalculate: a Hex calculator
mc: Midnight Commander for reading your hex file
Printing your Master Boot Record (MBR)
Offsets, Print the MBR to a file, Using Midnight Commander to view MBR

[GreyGeek]

Re: Qalculate!

We obviously are not referring to the same "Qalculate" application, or, it has been SIGNIFICANTLY improved.
[img width=400 height=285]http://qalculate.sourceforge.net/gtk-manual/figures/calculator-buttons.png[/img]

and that snapshot doesn't even begin to do it justice.

How about differentiation and integration:
[img width=380 height=400]http://qalculate.sourceforge.net/gtk-manual/figures/calculation-history.png[/img]

and it even includes an atomic chart with elemental constants, physics constants, financial formulas, and TONS more:
http://qalculate.sourceforge.net/gtk...te-main-window

Hex conversions and calculations it can do, but that is a mere miniscule fraction of its capabilities.

[Detonate]

Re: Qalculate!

Does it do statistical computations. Variance, standard deviation, reliability, correlation coefficient. I'm not doing it much anymore, but at one time I did a lot of it.

[rfakhrai]

Re: Qalculate!

does it integrate or derive? that would be very helpful at this point.

[GreyGeek]

Re: Qalculate!

does it integrate or derive? that would be very helpful at this point.

Calculus

Derive

diff(Function[, With respect to][, Order])

Arguments.

* Function: a free value
* With respect to: an unknown variable/symbol (optional)
* Order: an integer >= 1 (optional)

Extreme Values

extremum(Function[, With respect to])

Arguments.

* Function: a free value
* With respect to: an unknown variable/symbol (optional)

Integrate

integrate(Function[, Variable of Integration])

Arguments.

* Function: a free value
* Variable of Integration: an unknown variable/symbol (optional)

Check out the manual and drill down on its capabilities. It will STUN you.
http://qalculate.sourceforge.net/gtk-manual/index.html

[GreyGeek]

Re: Qalculate!

Does it do statistical computations. Variance, standard deviation, reliability, correlation coefficient. I'm not doing it much anymore, but at one time I did a lot of it.

http://qalculate.sourceforge.net/gtk-manual/apas14.html

[Snowhog]

Re: Qalculate!

Does it do statistical computations. Variance, standard deviation, reliability, correlation coefficient. I'm not doing it much anymore, but at one time I did a lot of it.

Qalculate! features

[GreyGeek]

Re: Qalculate!

It positions itself between KCalc and Maxima (or SAGE), say at about 65% the distance.

[Detonate]

Re: Qalculate!

RE: Statistical data

Seems to do everything one could want. Next time I have an array I need to analyze I will try it. Probably much simpler to use than Calc.

[Qqmike]

Re: Qalculate!

GG, yep the same Qalculate. I just wasn't clear in my post above and only introduced it in the context of number conversions. (With my math Master's + 2 years post, how could I fail to mention integral and differential functions! Ah, it was pure math that I spent my time on, that's why )

[GreyGeek]

Re: Qalculate!

Qqmike, you're my kind of guy!!! 8) I love math and physics ALMOST as much as I love my wife, kids and grand kids.