MaplePrimes Questions

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Dear maple users,

Greeting for the day.

I have some data in an excel file. How to plot the excel data in contours with labels.

Also, how to show the x-axis range =-1.5..1.5 and y-axis range = -0.5..1 with the contour sequence -2..2.

XLdat.xlsx

waiting for your reply.

Please see the figure for the model plot.

Hello friends,

I have an image in black and white and I wanted to compute and plot the intensity distribution histogram of it. So I did it with the command PlotHistogram, here's the output:

> PlotHistogram(Lena, 256)

I established the number of buckets to 256 but I don't see them at the x-asis, and I would like to see them for clarity as I don't understand the scale that is used by default. Could you help me achieve this and maybe also understand the scale used by default?

Thanks a lot.

I use nprintf to create greek characters as strings so that I can print them using printf.  But here is the strange behavior:

gk_Omega1 := nprintf("#%a", 937);
gk_Omega2 := nprintf("#%a", 937);

printf("%s %s", gk_Omega1, gk_Omega2);

does not print the same.  The gk_Omega1 is fine, but the gk_Omega2 prints "#937" instead of the the greek Omega character.

Does anyone see why this is?

Thanks, David
 

Can anyone look at this worksheet, and explain why maple seems to complicate an easily evaluated integral?

 

 

 

Hyper.mw

 


 

 

What kind of options do I have regarding printing a document to pdf?

Even though the document I have looks nice on the screen, it doesn't fit to a A4 pdf page.

Are there any scaling options, or fit to page anywhere which I did miss?

Any idea of how to import necessary libraries for use in Maple Player?

This question may be a little dumb, but how can I calculate the resultant of two homogeneous polynomials with two variables according to these variables? Say resultant(f,g,{x,y}), where f(x,y) and g(x,y) are homogeneous polynomials with degree m and n, respectively. Any help would be greatly appreciated!

Dear all, 

Yesterday I asked a very similar question, but i thought about it and found a different way to re-phrase my question:

Given a plot with three dependent variables that depend on one independent variable, how can I extract this data into a .xls (or .dat or whatever) file for re-use in Maple later on? The .xls will have to have 4 columns: the first for the independent variable and the next three for the dependent variables.

Find my worksheet here: worksheet.mw

I managed to write a program that extracts the data into a .dat file, but with only two columns. 

The reason that I want to do this is because I want to re-use the solutions to the variables and the derivatives in a different equation (for plotting). For example q(z) = ( diff(h1(z),z)+ diff(h2(z),z)+ diff(h3(z),z))/(h1(z) +h2(z) +h3(z)), and then z versus plot q(z). Any alternative suggestions would be helpful.

Hi, I am trying to integrate a lengthy-expression but maple does not give a result and got hanged even after waiting 1 hour and more, pls help me to handle this or is this any other way to get a result?

Help_of_Integration.mw

Test3.mw

Would anyone tell me how should I write a and b here for u(x) and v(x)?

Here the code for BVP, but there is a singularity how to avoid it

a:=-0.1:alpha:=0.1:
dsys:={diff(u(r),r,r)+(1-alpha)/r+r^(alpha-2)*diff(u(r),r)=a};

res1:=dsolve(dsys union {u(-1)=0,u(1)=0},numeric,output=listprocedure);

plots[odeplot](res1,[[r,(u(r))]],-5..5,axes=boxed,tickmarks = [3, 2], color = black, thickness = 1, linestyle = solid, titlefont = [Helvetica, roman, 18], labeldirections = [horizontal, vertical], labelfont = [Helvetica, roman, 24]);

 

How I can show function w, on the 3d surface?

I want to show w (a function that shows mode shape or shows boundary condition) on the surface of the following plot3d?

This function changes the coordinates of some points and creates a different shape. this behavior occurs when geometry experiences some vibrational behavior.
Thanks

plot.mw

 

Dear administration, I hope you all are good, why my question have been deleted? Even my important question on legends was deleted.

Two questions posted by AHSAN have just been deleted.
They were somewhat redundant with a previous one, which probably justifies their deletion.
Nevertheless, some had given AHSAN answers or replies: in this case, could the answers not be kept in some place? Perhaps in the question that the "eraser" thought was the original question?

Hello, 

How can I solve this equation in Maple?

Please help me?

 

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