MaplePrimes Posts

MaplePrimes Posts are for sharing your experiences, techniques and opinions about Maple, MapleSim and related products, as well as general interests in math and computing.

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  • I'm running Ubuntu 8.04 on an AMD Athlon64-X2 (AMD64), and found that "xmaple" did not work right out-of-the-box when I first got Maple 12. There was a bunch of error messages in the terminal I started it from regarding lock assertions or libraries not found, printed by the X-Windows libraries. I also had the problem where it won't print via CUPS.

    Like most students studying engineering in the 90s, spreadsheets were the de facto calculation tool.  I used them for everything from food budgeting to pump and piping sizing calculations. 

    Computing power has since exploded, and engineers have far better choices.  But engineers still continue using spreadsheets. 

    Why?

    There’s really only one reason – ubiquity and familiarity.  A spreadsheet is installed on nearly all desktop computers, but even though most engineers are aware of at least some of their design deficiencies they keep on using them.

     

    Hey there,

     

    the attached worksheet shows you how to master definite integrals using special tools that help you determine the pattern between antiderivatives and the area under a curve.

    You can also view the examples done in an interactive video:

    (Ctrl+click on link)

    Definite Integrals - Video Tutorial

     

    Dear forum,

     I am working with maple 6. I have type the lines below :

    > restart:readlib(ztrans):
    > ztrans(Delta(t),t,z);

                               ztrans(Δ(t), t, z)                 ( this is the reslut)

    > ztrans(Step(n),n,z);

    It is not every day that a venerable and wide-ranging standard such as IEEE-754 gets an update!  IEEE 754 dates from 1985 (that was the year it was approved, the actual work started years before).  Wikipedia has a nice summary of the changes.

    Of course now inquiring minds want to know: will Maple 13 by IEEE-754-2008 compliant? [For all I know, it might already be most of the way there, with only minor tweaks necessary].

    Hi

    I have just purchased the download version to install on my HP dv900 laptop.  I have 2Gb RAM and over 137Gb of hard drive space available.  My account has full administrator privileges, but when I try and install the software I get a InstallAnywhere error telling em to choose another location to extract the installer file.

    I have tried everything I know to try and install the software, but to no avail.  I need this software for my Multivariate Calculus class, co any assistance will be gratefully received.

    Regards,

    --Mark Millward

    Large or involved projects may involve Maple modules which rely upon each other. Routines in one module may call routines in another module. Interdependence of modules can have a direct bearing on the available means of successfully utilizing the `use` functionality. In certain situations, some of the ways to utilize the `use` statement can be problematic.

    Some such situations, and workarounds, are illustrated below.

    The basic description of the `use` statement functionality is,

    Math is boring. Math isn’t useful. You’ll never need to use math again after school. It isn’t necessary to learn math, now that we have cash registers, calculators and computers. Math is just plain boring.

    Wrong!
     
    Math matters!

    After ?invtrig:

    For real arguments x, y, the two-argument function arctan(y, x), computes the principal value of the argument of the complex number x+I*y, so -Pi < arctan(y, x) <= Pi.

    For any point in C or R^2 (x,y)<>(0,0) the geometrical meaning of this result is clear: the angle that the segment/vector from (0,0) to (x,y) forms with the x-axis. But this angle is undefined if this point is the origin.

    So, what is arctan(0,0)?, and what it should be?

    If x -1 is regarded as the difference of two cubes, can Maple factor it?

    Alla

     

    The attached work sheet teaches you the fundamental concepts behind the antiderivative.

    The examples in this worksheet are entirely done in an interactive video tutorial - follow the link below:

     (Ctrl+Click on the link to view the video)

    Antiderivatives - Video Tutorial

     

    Enjoy!

     

    The attached worksheet is a wonderful introduction to the concept of obtaining the area under a curve.

    You'll see how easy it is to learn how to find the limit of the sum of a series using Maple.

    An interactive video tutorial that shows you how to do Riemann sums really fast is linked below:

    (Ctrl+Click on the link to view the video)

    Riemann Sums...

    f := proc (x) options operator, arrow; cos(x)-x*sin(x)+1 end proc

    _EnvAllSolutions := true

    solutions := [solve(f(x) = 0, x)]

    evalf({%})

     

    What is up with that solution at zero?  And if this function is plotted, there is clearly a solution at around x=1.3.  Maple does not see this, is there a setting I missed?  Thanks.

     

     

    GMP is now deeply integrated into Maple - which I consider to be a good thing.  But it appears that compiler writers are doing a bad job (see the first paragraph on GMP's home page)  In other words, unless you carefully make sure that you have compile GMP properly, it is entirely possible that you end up with a buggy library.  Very scary stuff.

    It’s not the fault of my world-famous professors at M.I.T. who gave me a M.Sc. degree in Electrical Engineering, but it’s a fact – I know less about engineering than most (if not all) of you.

    Way back then, “Computer Science” was a fledgling field of study, and in many schools it was an offshoot of either math or engineering.  In my case it was an offshoot of engineering, and ergo my inappropriate degree.

    So much for my sordid past.

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