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dear i have very complex problem may it wil easy for somone, i have 36 equations in maple that i have to use in matlab to simulate and the equations have to take som numercal values in matlab, and it has to generate some numerical values while running in a loop. i have used the with code generation option in maple. and it produce a code for matlab.


given a n*n Square Matrix (n is known), what is the easiest way to calculate all minors of this matrix ? There is a minor command in LinearAlgebra, but it seems to refer only to the first minor, that are the determinants of the reduced (n-1)*(n-1) Matrix. But I want the minors of a given size, specified by me. An application would be a test of definitness (Sylvester's Criterion). Using Maple13



Good Afternoon,

Would anyone help on how to assign equations in a list to an index variables in a list. Below is my equations.

Eq := [seq(A[i], i=3..n)] = [seq(M[i -1]*a/(6*E*Ipile) + 2*M[i]*a / (3*E*Ipile) + M[i + 1]*a / (6*E*Ipile) - (Delta[i - 1] - Delta[i]) / a - Delta[i] - Delta[i + 1] / a ) = 0 ), i=3..n)]


When I tried the above, I was expecting Maple to assign A[3]  to the first equation in the list on the right hand side and so on, but instead I was getting an error message.

<p> </p>
<p>I'd like to visualize my daily work and plot a curvature flow. First of all, I need to define and to plot a hypersuface. How do I do that?</p>
<p>Afterwards I'm going to calculate it's fundamental form and other geometric quantities.</p>
<p> </p>
<p>Kind regards</p>

Dear Sir / Madam,

Attached is copy of worksheet developed in MathCAD that I would like to develop in Maple. I have copy and paste what I developed in MathCAD into a Maple worksheet to see if any body can guide me. I have posted previously an excel file with Canadian steel sections on Mapleprimes. My goal is to be able to auto select  a  steel section from the database into Maple for computation.

Please, would anyone guide me as to how to develop the attached worksheet into a Maple worksheet.




find volume of the solid obtained by rotating the region bounded by the curves y=0, y=sinx, 0<=x<=pi about line y=-2.

I got as far as the diagram and the starting off equation.

If I could get some help that would be great. Thanks

Hi everyone,

I have a differential equation

      diff(N(t), t) = r*N(t)*(1-N(t)/K) - p(N(t)),    N(0) = N0


      p(x):=piecewise(0, x<0, S/(N_crit)*x, 0<= x<N_crit, S)


This equation represents the population growth model where the predator is present.

I need to solve a 2 order hyperbolic PDE (The Wheeler-DeWitt equation for a closed universe), numerically, with some sort of complex initial/boundary conditions. It seems that the program is executed and the module is returned, but while I use the plot, plot3d, value… commands for different values of time variable (\phi), the following error is appeared on my Maple 12 worksheet:

Call me stupid but I still wasn't able to run the simple example in the maple help (see ) regarding calling external, precompiled Code (in my Case: c++).

Seems simple enough but I can't find how to select the whole part of a decimal number.  I want to use the number with mod. 


I'm not sure if this can be done in a current worksheet but I'm pretty sure it has to be done in a separate worksheet. 

What I'm trying to do is set up a running loop that automatically displays the amount of time the maple kernel has been in use, say every 600 seconds or so.  I know I need to use time[real] but I need it continuously running if I want it to display times, right?  Which means I need it to run in a separate worksheet I think. 

Any ways that I can do this with maple?

Hello have a text file full of x,y,and z Coordinates. Im trying to create a Topographical Map using these coordinates. How can I use Maple to plot these points and show me the contours. Prefereably I would like to have a 3D model of what im ploting


Thanks for any help or advice

I have asked this question in a math forum on the physics forum site and figured it would fit better here:

any and all help would be greatly appreciated!



can any one help how to plot streamlines for any given velocity vector field. or any one know strean proc please.

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