Hello,

I am having problems printing Maple Flow documents. I have set up both a header and a footer. In the Print Preview mode, everything is fine. When I try to print to a PDF file, the header loses its format and the footer does not print at all. Printing to a printer looks the same. What settings must be selected so that the printout can be passed on as a well-formatted document?

Many thanks in advance.

I have been using Maple Calculator on my phone and found that the "Steps" to solutions option was useful, particularly for integration. However, I spend more time on my computer than phone and thought that Maple Learn would be even better. When I tried the free version of Maple Learn the "Steps" button never appeared. I thought this might be because it is only available with a subscription, so I have subscribed for one month to evaluate. However, after doing that the "Steps" button still did not appear. After a bit of digging, I found the Steps documentation and found you must open specific documents from the Maple Gallery for different problems to get the Steps button which seems a bit odd when the Maple Calculator does this automatically. Worse still there does not seem to be an option for integration!

Although I can see a lot of benefits with Maple Learn this seems to be a backward step (pardon the pun). Also, even though I have subscribed to Maple Learn, I still do not appear to have Premium on my phone in the same account. Again, a little disappointing.

Have I misunderstood something or is this the way it is?

Will

please, help me..this is my model

I have a fairly simple worksheet with a 56x2 matrix M1 which I am trying to export to Excel with the following 

ExcelTools:-Export( M1, "C:/Temp/M1.xlsx", 1, "B2")

This causes the following message to appear

After that the program is frozen and totally unresponsive.  The only way to proceed is end the task in Task Manager..

I am trying to upload the worksheet but am not sure if I have succeeded

Download Calculation_of_pH_from_known_values_of_Vb.mwCalculation_of_pH_from_known_values_of_Vb.mw

I created a Github repository with files to reproduce the example that my question is based on.

I am using Grid:-Run to compute a 10000x3 matrix in each of 100 parallel runs. I then average the 100 matrices to obtain a final 10000x3 matrix, which I saved to an .m file.

It contains a variable called r with the matrix.

Each row of the matrix is a 3d point, and the entire matrix represents a trajectory on a sphere. I'd like to display an animation of this trajectory. Now, my question is not about how to do this, but rather about the memory requirements necessary to do so.

I can plot trajectories with, say, 1000 points, but apparently 10000 requires too much memory.

The Github repository I linked to contains an example of all of this.

The worksheet matrixTest.mw reads the matrix from the .m file and reads some procedures defined in the .mpl file that are used for creating the animation data.

Then, a call to the procedure animateMatrices basically calls plots:-display to display the matrix as an animation.

I've been able to display the first 5000 rows of the matrix.

What type of memory is running out when I try to display the animation of the full 10000 rows?

Here is a screenshot of my Activity Monitor right before I get the

Error, out of memory error while processing result

Hi! I need to simplify a polynomial over an arbitrary field F on a radical variable ν, such that for some power j, ν is in F.

the polynomial takes the form:

k₀+a₁ν^1/j+...+a_nν^n/j

but, since ν^j is in F, this divides every element ν^i/j into a cotient group of order j, so this can be rewritten as a radical extension of F, in the form: 

k₁+(a₁+...)ν^1/j+...+(a_k+...)ν^(j-1)/j

where k_i, a_i are in F. I feel like this is a very straightforward technique for handwritten algebra, but i can't see a command for this on Maple 18. Nor the simplify(..., radicals) Or the combine(...,radicals) seems to help here. Maybe there's an special command for this? Must i do it myself? Please, any help is aprecciated.

This question is based on the following worksheet I created specifically to show my question: Animation_Test.mw

Unfortunately, MaplePrimes gives me an error when I try to insert the contents here directly.

Basically my question is about the syntax of plots:-display.

I have a sphere

sphereDisplay := plottools:-sphere([0, 0, 0], 1, transparency = 0.9);

and something which is the result of calling plots:display on a sequence of two other other plots:-display.

arrowAndTrailDisplay := plots:-display(seq(plots:-display(computeArrowPlotFrame(m, t, red), computeTrailPlotFrame(m, t, windowSize, red)), t = times), insequence = true)

You can see in the attached worksheet what computeArrowPlotFrame and computeTrailPlotFrame are, but they are basically lists of plot structures. arrowAndTrailDisplay is thus an animation containing two different sequences of frames.

I wish to have Maple plot the sphere and the animation together. This works as expected (a static sphere and the animation of an arrow and a trail of the path of the tip of the arrow)

plots:-display([sphereDisplay, arrowAndTrailDisplay]):

but the following does not work as expected (instead it plots each frame separately)

plots:-display([arrowAndTrailDisplay])

adding insequence=true to the latter makes it work. But my question is why do I have to add that? I can't understand, from syntax standpoint why the former plots arrowAndTrailDisplay as an animation but the latter does not.

Hello everyone,

I am trying to solve a system of six equations through a matrix and a vector. The matrix is 6x6, so the function "LinearSolve" should find a solution 

The matrix is

Matrix(6, 6, [[1., -1., 1., -1., 1., -1.], [1., 1., 1., 1., 1., 1.], [-2., 1.618033989, 30.94427190, -153.8246851, 371.1559479, -572.9674774], [-2., 0.6180339876, 22.94427191, -41.15905356, -37.04759741, 149.3606798], [-2., -0.6180339876, 13.05572810, 22.82468509, -20.15594802, -81.03252254], [-2., -1.618033989, 5.055728096, 28.15905368, 68.04759752, 104.6393203]])

and the vector associated with the system is

Vector[column](6, [-1/3, -1, 0, 0, 0, 0])

I am trying to solve this system with

a := LinearSolve(M3, v);

but it stays evaluating.

I have solved a similar system (5x5) with this function (LinearSolve) and it took less than a second, so I dont understand why it takes so long in this case.

Thank you in advance.

Consider the following code in an .mpl file

$define MACRO1 "1"

$define MACRO2 "2"

$ifdef __FILE__

$define MACRO3 "3"

$endif

$ifdef MACRO1

$define MACRO4 "4"

$endif

f := proc()

print(MACRO1, MACRO2, MACRO3, MACRO4, __FILE__):

end:

If we run this from a worksheet and call the procedure f, the printed output is

"1", "2", MACRO3, "4", "/Users/zenterix/..."

Why does $ifdef __FILE__ evaluate to false? Ie, why doesn't MACRO3 get defined? I thought __FILE__ was a predefined macro.

I have been unable to re-size and imported image into a Maple Flow 2022.2 document. I just used my old Maple Flow 2021 and I had no problem. When I use Maple Flow 2022.2 I cannot re-size an imported image. I was able to re-size an imported image in Maple Flow 2022.1. Is it just me or has anybody else experienced the same problem? I also imported the image into Maple 2022.2 and had no problem re-sizing the image.

I formatted all the input math expressions with a different style and then exported them to create a style set called Mystyle1. However, when I load Mystyle1 and apply it to a document, the functions that were typed partially obey the style, but the expressions that were inserted through the palette do not; font and size are different and bold is not applied.
Does anyone know why this happens?

If anyone wants to test it, Mystyle1 and a simple document are attached.

Regards,

Oliveira

Example.mw

Mystyle1.mw

@ASHAN's question was about a linestyle which wasn't displayed as expected.

Maybe a handling error on my part?

To ASHAN:

• Answer to your question here Help_graph_style_mmcdara.mw
• Extra: formal solution to the ODE here ODE_Formal_Solution.mw

Hello;

Hope you are fine. I need to learn how can I call my code in the other file of maple, define new value for A and can get results. For this purpose, I just take an simple example as

questionmaple.mw

Download questionmaple.mw

I would like to read data from a google sheet document. I can download a local copy to excel format, but then I'm no longer tied to the origional file.

MyPackageTools := module()
    option package;

    export addPackageDirectoryToLibname, savePackageToMla;

    addPackageDirectoryToLibname := proc(packageDir)

        local mapleInitFile, newLibname:

        mapleInitFile := "/Library/Frameworks/Maple.framework/Versions/2022/lib/init":

        try 
            FileTools:-Text:-Open(mapleInitFile, 'append'):
        catch:
            return "Failed to open file":
        end:

        try
            newLibname := cat("libname := \"", packageDir, "\", libname:" ):
            FileTools:-Text:-WriteLine(mapleInitFile, newLibname):
        catch:
            FileTools:-Text:-Close(mapleInitFile):  
            return "Failed to write to file.": 
        end: 

        try
            FileTools:-Text:-Close(mapleInitFile):   
            return "Added to libname successfully. Restart worksheet for changes to come into effect.":
        catch: 
            return "Failed to close file":
        end:
    end:

    savePackageToMla := proc(mlaPath, mplPath, packageName)

        read(mplPath);

        LibraryTools:-Save(packageName, mlaPath);

    end:
end:

I'd like to automate my workflow a bit. I having a hard time making savePackageToMla work. The commands inside it are the ones I would run in a Maple worksheet to save a package to an .mla file.

The error I get when I try to use this is

Error, (in LibraryTools:-Save) 1st variable is not a name or equation |/Users/marcusegues/maple/Packages/MyPackageTools/MyPackageTools.mpl:38|

Note that the goal is to pass in an mla path and an mpl path. The mpl file is read. The package that is read is the same as the argument packageName. 

I invoke this procedure with something like

savePackageToMla(mlaPath, mplPath, 'MyPackage')

where 

mplPath := '/somePath/MyPackage.mpl';
mlaPath := 'somePath/MyPackage.mla';

and MyPackage.mpl contains something like

MyPackage := module()
  option package;
  (...)
end;