Items tagged with maple maple Tagged Items Feed

Dear all,

I woul line integrate e gradient moltiply to a vector. I will try to explain better.

I have define this function:


and I have a vector a


I would like to applu a dot product between the gradient of phi an the vector and integrate the results. 

I have already try in many way but without succeed. Someone could please help me?


After installing the 18.02 update to Maple 18, the inverse Laplace transform no longer works!



  I am using maple on Windows 7. I edit .mw file by maplew.exe.


  When the source code becomes long, e.g. over 2000 lines, the editing resonse starts to be slow. I can try to edit in other software, e.g. editplus. Is there any way to let maplew works faster?


Thank you!

Hi experts


In a procedure with no declared parameteres I would like to return (print) the passed arguments (expecting Matrix structures) in a modified form along with the name of the symbol holding the structure passed as arguments.


That is, the procedure just iterates through the _passed arguments in a for-loop to display the name of the the passed argument (the symbol), a colon and then the modified matrix structure.

My problem is that when looping from i to _npassed arguments, refering to _passed[i] gives me the evaluated form.Tat is what I need to modify the structure but not to list the symbol name.


Say I wanted to print a transposed version of my passed matrices. Then I would call



And the result I want would be

M: <<1,3>|<2,4>>

But I don't know if _passed holds the symbol names or just the evaluated versions of the passed arguments??

And theoretically the passed argument (assuming a matrix) could be the matrix structure put directly in the procedure call, in which case there is no symbol to refer to.


I hope you get my question and can help me out.





Please help solve this system

M_1:=z->piecewise((z<l), 2*q*l*(z-l)+l-z-q*z^2/2, (z>l), 2*q*l*(z-l)+l-q*z^2/2-l): 


We received an interesting and timely submission to the Maple Application Center this morning that I think people might be interested in.  It's called:

The Comet 67P/Churyumov-Gerasimenko, Rosetta & Philae, by Dr. Ahmed Baroudy. From the abstract:

Our plan is rather a modest one since all we want is to get , by calculations, specific data concerning the comet and its lander.
We shall take a simplified model and consider the comet as a perfect solid sphere to which we can apply Newton's laws.

We want to find:

I- the acceleration on the comet surface ,
II- its radius,
III- its density,
IV- the velocity of Philae just after the 1st bounce off the comet (it has bounced twice),
V- the time for Philae to reach altitude of 1000 m above the comet .

We shall compare our findings with the already known data to see how close our simplified mathematical model findings are to the duck-shaped comet already known results.
It turned out that our calculations for a sphere shaped comet are very close to the already known data.

Click on the link above if you want to take a look.



Hey, how is can i see all the steps in maple? I would specially like to know it for differential equations.

For example we could use this one:

dl := 3*(diff(y(t), t, t))+6*(diff(y(t), t))+4*y(t) = 0 

hello . i have a Partial differential equation i need some help with 


This is how it goes 

Updates are now available for both Maple 18 and MapleSim 6.4. 

Maple 18.02 contains improvements to many areas, including:

  • Rendering of 2-D plots
  • Help pages and examples
  • Interactive components
  • MATLAB 2014a support
  • Math engine: Laplace transforms, complex floats, simplify
  • Matrix import
  • Context menus
  • Typesetting
  • Memory management
  • OpenMaple API
  • Physics (details in comments)

To get this update, you can use Tools>Check for Updates from within Maple, or visit Maple 18.02 Downloads. (But depending on when you read this, Check for Updates may not have kicked in yet. If it doesn't find anything, wait until tomorrow morning and try again.)

For those users who haven't upgraded to MapleSim 7 yet, MapleSim 6.4.01 includes:

  • Efficiency improvements to the simulation engine, taking advantage of enhancements in Maple 18.02
  • Improvements to C code generation for model export
  • Improved handling of indexed variables when generating Modelica code

In MapleSim, use  Help>Check for Updates or visit MapleSim 6.4.02 Update. Note that MapleSim 6.4.02 is compatible with Maple 18.02.  Upgrade your Maple 18 installation to Maple 18.02 before installing this MapleSim update.



I have a question: Why gives Maple no result for:

expr2 := sin(k*(t-tau))*sin(k*tau);
Int(simplify(expr2, symbolic), tau = 0 .. t);

It is possible with Wolfram Alpha:*%28t-tau%29%29*sin%28sqrt%28k%2Fm%29*tau%29%2C+tau+%3D+0+..+t%29



I'm trying to find the partial sum of the function. Now I need to plot the first couple partial sums onto 1 graph.

I'm not really sure how to input the plot function. I was able to graph it by inputting each partial sum function but I would prefer an easier solution.

Hi every body:

i will earn the cofficients of q(T),q(T)^2 and (diff(q(T), T, T)) with commonds maple,how?

eq := 324.6463527*(diff(q(T), T, T))+4.012505275*10^11*q(T)+3.589858529*10^12*q(T)^2 = 0;

As stated, contourplot3d is not displaying contours. Even in the Maple Help examples the contours are not displayed in the help screen.

In this example:

contourplot3d(-5*x/(x^2+y^2+1), x = -3 .. 3, y = -3 .. 3, filledregions = true);

which is directly from Maple Help, the surface is plotted (with boxed axes), but no contours appear.

When I try

contourplot3d(-5*x/(x^2+y^2+1), x = -3 .. 3, y = -3 .. 3);

the plot shows nothing except boxed axes.

I've also tried

plot3d(-5*x/(x^2+y^2+1), x = -3 .. 3, y = -3 .. 3, contours=6);

and the surface shows but without countours. Furthermore, the Maple scripts that worked previously in earlier versions (showing contours via plot3d) now do not show contours in Maple 18. This occurs on both Win 7 and Win 8 laptops.



i am solving 3 ODE with boundary condition.. with boundary condition

Maple Worksheet - Error

Failed to load the worksheet /maplenet/convert/ .



then i got this error

Error, (in dsolve/numeric/bvp) initial Newton iteration is not converging

i dont know where i need to change.. could you help me..


4 5 6 7 8 9 10 Last Page 6 of 268