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    Qalculate!

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

    It's a keeper!
    "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
    – John F. Kennedy, February 26, 1962.

    #2
    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
    An intellectual says a simple thing in a hard way. An artist says a hard thing in a simple way. Charles Bukowski

    Comment


      #3
      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.


      "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
      – John F. Kennedy, February 26, 1962.

      Comment


        #4
        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.

        Comment


          #5
          Re: Qalculate!

          does it integrate or derive? that would be very helpful at this point.
          Home: Kubuntu 12.04-amd64; Intel i7-860 on Intel DH55PJ; Nvidia 9500GT; 6GB RAM
          Network Slave: Xubuntu 11.10-x86; Intel P4-Prescott on MSI; 2GB RAM; Nvidia FX5200
          Portable: Xubuntu 11.10-amd64; Asus EeePC 1015PEM

          Comment


            #6
            Re: Qalculate!

            Originally posted by rfakhrai
            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
            "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
            – John F. Kennedy, February 26, 1962.

            Comment


              #7
              Re: Qalculate!

              Originally posted by Detonate
              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
              "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
              – John F. Kennedy, February 26, 1962.

              Comment


                #8
                Re: Qalculate!

                Originally posted by Detonate
                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
                Windows no longer obstructs my view.
                Using Kubuntu Linux since March 23, 2007.
                "It is a capital mistake to theorize before one has data." - Sherlock Holmes

                Comment


                  #9
                  Re: Qalculate!

                  It positions itself between KCalc and Maxima (or SAGE), say at about 65% the distance.
                  "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
                  – John F. Kennedy, February 26, 1962.

                  Comment


                    #10
                    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.

                    Comment


                      #11
                      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 )
                      An intellectual says a simple thing in a hard way. An artist says a hard thing in a simple way. Charles Bukowski

                      Comment


                        #12
                        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.
                        "A nation that is afraid to let its people judge the truth and falsehood in an open market is a nation that is afraid of its people.”
                        – John F. Kennedy, February 26, 1962.

                        Comment

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