MaplePrimes Questions

Hi, I am trying to use swaprow in a loop, but it is not working, could someone please point out what i am doing wrong please?

aFront:=RandomMatrix(9):

with(linalg):
for m from 1 to 3 do
Quad2:=swaprow(aFront,m,m+2)
end do:

Why can't i get Quad2. Please help, thanks.

What is the difference between with(Student[LinearAlgebra]) and with(LinearAlgebra)?

When i tried to use functions such as AddRow, SwapRow, it doesn't work when i load "LinearAlgebra", but works fine with "Student[LinearAlgebra]". May I know why is this so please? Thanks.

Let N(1, 1)=1 and N(1,k)=0 if k<>1. Let N(s+1,k) = N(s,k) + N(s,k-1) + N(s,k+1).
Acting in such a way, we obtain  the triangle
         1
       1,1,1
    1,2,3,2,1
  1,3,6,7,6,3,1
.................,
where only the nonzero terms are shown.
What is the explicit formula for N(s,k)? How to find it with Maple?

how to solve two equations simultaneously in maple and also i want to get only real values,, just omit the imaginary results.. anyone help to me

 

 

 

Thankyou

I would like to define the "12 by 12" matrix A where a_{ij} = (i-1)^(j-1) using for loops. How can this be done? If for loops are not the most efficient way, any other suggestions are welcome! Thanks!

Hello,

I want to build a paper model of an immersion of real projective plane made out of paper strips. I want to use maple to plot the curves which represent the paper strips. I have written a code shown below which computes the curve for one of the strips. In this code, alpha is set to Pi/2 and the computation goes through. However the computation should be performed for various alpha. But if I set alpha=0, then f (see code below) is not computable, if I set alpha=Pi/4,...

eq1:=diff(f(eta),eta,eta,eta)+f(eta)*diff(f(eta),eta,eta)+beta*(1-diff(f(eta),eta)^2)=0;

eq2:=diff(theta(eta), eta, eta)+pr*f(eta)*(diff(theta(eta), eta))+pr*Ec*(diff(f(eta), eta, eta))^2

+(2-beta)*pr*Q*theta(eta) = 0;

bc:=theta(9)=0,D(theta)(0)=-Nc*(1-theta(0)),f(0)=1,D(f)(0)=lambda,D(f)(9)=1};

Para:={beta=1,Ec=0.5,Q=-0.5,Nc=5,pr=3}:

How to plot -D(theta)(0) vs lambda?

Thanks

How many positive integer solutions (a,b,c) to 2a+3b+3c=2010

I created a math related blog, named ottomath, on Goggle blogger. My Maple 14 is on a PC. I post from a Mac.  Had to copy the Maple file to Word.  Then copy each input or output image to Paint to save as JPG, and then insert each image into the correct spot on the blog.  Very tedious.  Hard to control size.  Lots of unwanted spaces.  Is there a better way?

Hi there.

 

I build a costum component on maplesim. It has 2 inputs and several outpus, like this:

 

As you cant see i get an error. At this simulation the constant where is probe1 is k=4. I have good results if n=2-~3.5. But what is strange is that if instead of a constant input n=4, i use a...

Hi!

I have a function of two variables f(a,b)

 f(a,b) =16*b^2/(a+sqrt(a^2+8*b^2))^2

and I need to rewrite it to a function of a single variable

f(x) = 16*x^2/(2+2*sqrt(1+8*x^2)+8*x^2)

where x=b/a. It is easy...

I‘m calculating the determinants for applying the cramer's rule in Maple, however the result is very "large" and I can't see the pattern easily. For a general formula of the determinant please refer to this link: http://math.stackexchange.com/questions/193961/determinant-of-a-symmetric-matrix.

 

I wonder is there a way to simplify the answer to a nice symetrical form?

Here is a possibly stupid one: I have written a couple of help files for a package I am developing. As things go; I want to update one. In the help system it tells me to edit the .mw file that i used to write the page in the first place, which I did. But then I am supposed to "Save to Database" from the Help menu.

But... there is no entry to "Save to Database..." in any menu; help or otherwise. Not even in the help system. So I am stuck with an edited help page that I cannot get to ...

Hi, is there any sane way to incorporate Maple 2-D output in PowerPoint, 2004 in my case (and 2004 does not support MathML, I believe)? Preferably I'd copy from Maple and Paste into ppt. I have not been able to make that work.

The pedestrian way right now for me is to use Grab and take a screen shot of the expressions. Not a nice way...

Thanks,

Mac Dude

Hi,

I'm playing at the moment with some calcuations on color space and even after a lot of trials on different softwares including photoshop and Igor Pro, I cannot obtain what I want... The advantage with Maple is that if I get this color space I will be then able to animate a point at the surface to describes the color evolution of a system... And that's what I try to do...

The idea is quiet simple but necessits the use of procedure and I'm not so good for that.

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