MaplePrimes Questions

Here is my code, I know I am just missing something in the Export (last line) command to make it write the next iteration to a new cell, but nothing I am trying has worked. 

restart:
with(LinearAlgebra):with(plots):with(ExcelTools):

for N from 25 by 5 to 50 do
for b from 0.01 by 0.01 to 0.25 do
for h from 0.02 by 0.02 to 0.2 do
for h1 from 0.015 by 0.005 to 0.1 do
  A1:=proc(N::posint,b1,e1,h0,h11,h21) local M;
      M:=Matrix(N,(i,j...

Hello,

I have created a for loop in which I call often the same function let's say w(x).

Is it processed faster if I call each time the function, or if I apply the function to another variable, let's say W and call W each time?

Thanks

Gamma := sqrt(1-a^2)/(1-a/z)*((1/z-a)/(1-a/z))^(N-1);
int(subs(z=exp(j*w),Gamma)*Conjugate(subs(z=exp(j*w),Gamma)),w=-Pi..Pi)

would like to prove this integration = 2*Pi, however got error

int(subs(z=exp(j*w),Gamma)*subs(z=exp(-j*w),Gamma),w=-Pi..Pi) also not equal to 2*Pi

I need program of multiple shooting method with maple or algorithm?

Thanks alot.

The pyramid is the standard simplex in 3D with vertices (0,0,0),(1,0,0),(0,1,0) and (0,0,1). Ie it's the convex hull of these 4 points. Because Maple does not have "convexhull" plot command for 3D objects, so instead one has to plot a pyramid.

 

My commands:

                            with(plots);

 ...

Hi i have difficulty to obtain the function of theta(eta) and diff(theta,eta) form the matrix. Every time i have to take the values from the matrix inorder to make the function of theta(eta) and diff(theta(eta),eta) which is very difficult.

Can you please make a code in MAPLE so that i may get the direct fuction of theta(eta) and diff(theta(eta),eta)from the matrix gernerated by MAPLE.

i WILL WAIT FOR YOUR QUICK RESPONSE.

Hello everyone,

 

  I have a file, e.g.'helloworld.txt'. It cotains

 

hello 3 5 7
world 1 2 6

 

 If I use

  L1:=readdata(`D:\helloworld.txt`,3):
print(L1);

 I just got a "[]"

 

How can I get the data from the file which has many word?

 

Thank you very much in advance

 

Dear Maple users,

Now I am using Maple-13 in my lappie with Windows-7 (64 bit).

I came to know that there is a special package to manipulate the q-series called as MAPLE q-series package.

References :

www.math.ufl.edu/~frank/qmaple/qmaple.html

http://130.203.133.150/viewdoc/summary?doi=10.1.1.190.2641




Now I wish to have that package for my research work.

I request you to provide me with the complete details about that package.

 

 Hi: I access my school's network remotely for Maple14. When I use with(DirectSearch); I get the following message:

                 

Error, invalid input: with expects its 1st argument, pname, to be of type {`module`, package}, but received DirectSearch

I need help and look forward to a solution to this.

Hi guys, my Maple version is 15.01, when I want to do the following plots, the Maple pops up this failure "Kernal Connenction Lost":

Here're the corresponding input commands:

J := u -> evalf(Int(1/(sqrt(x^2+u^2)*(exp(sqrt(x^2+u^2))+1)), x = 0 .. infinity));

plot(exp(-2*J(Delta/(.4))), Delta = 0 .. 1);

Does anyone encouter the same problem if you try the commands? I wonder how to fix it, thank you.

 

F := [x1/(1+t^2)+x2, -(x1+x2)*(1+1/(1+t^2)), -x3];
rho1 := [diff(F[1],x1),diff(F[2],x1),diff(F[3],x1)];
rho2 := [diff(F[1],x2),diff(F[2],x2),diff(F[3],x2)];
rho3 := [diff(F[1],x3),diff(F[2],x3),diff(F[3],x3)];
theta := Matrix([[rho2, -rho1, 0],[rho3, 0, -rho1],[0, rho3, -rho2]]);
with(LinearAlgebra):
with(linalg):

evalm(theta&*Matrix([[M1],[M2],[M3]]));

Find M1 M2 M3

Answer is
M1 = [-1, -1, 0]
M2 = [1, 0, 0]
M3 = [0, 0, -1]

Here is an example I have,

> evalf(sum(Zeta(p-2.)*2.9^p/GAMMA(.5000000000*p+1.), p = 4 .. infinity))

The Maple just returns me the same expression, but if I change the number "2.9" to be some other numbers (roughly >3 or <2.8), then Maple "will" give me the answers. What happened? Can anyone tell me why Maple refuse to do the work during that range of value (roughly between 2.8 to 3). It's even weird. If you change the initial index of the sum from...

I am currently working on a MapleSim model that is similar to the Stewart Platform, yet less complex. I have built a tripod that is fixed to the ground with three legs connecting to a platform. Connecting the leg to the ground is a revolute joint and connecting the leg to the platform is a spherical joint. When I change the initial conditions of the spherical joint from 'Treat as Guess' to 'Ignore' 2 of the 3 legs will change orientiation. I'm not sure why this occurs to only 2 legs, can someone help me?

Let G be a connected undirected graph. How to find the minimal set of the edges of G, such that its annihilation transforms G to a planar graph, with Maple? The procedure should work with big graphs.

I want to integrate the following two function using Maple, but it returns nothing

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