im interested to know if there are developed MapleSim examples of water level control in a tank

I am dealing with Fourier series, I have series of sin(nw) + cos (nw) for different  value of n . How can I put all sin together and all cos together equal to zero, when n=1000 for example.

hi

I have an unkhown function as f(r) which i want to solve it at the end of calculation. How can i define it in beggining?

I created a Maplet that calculates ODE (Ordinary Differential Equations) however I would like to create a button that can allow printing on paper

i confused for finding a very special command that can join a "set of values" to a "set of indices " ?

also i can't use the map command for this ( guide ? )

like this :

{(1,1),(1,2),(2,1),(2,2)}

{1,2,3,4}

i want to join the two sets to form a complet set of equations index :

{(1,1)=1,(1,2)=2,(2,1)=3,(2,2)=4}

since this is just a simple example , but i need an efficent way for doing it in large size data (image processing)

appreciate for answering !

hey friends I have solved linear equation numerically and in the end i have ploted pointplot graph where every point in graph is taken maunally. Please help me how to write code that at specific values of x required points from 

Solution := backsub(S) 

should automatically be ploted where x=i*h and h=1/32 where i varies from 0 to m. 

For example, fill in the follwing blanks with 1~9 numbers to make it as an identity, the numbers are MutuallyExclusive.
()/()+()/()+()/()+()/()=()
Thank you very much for any method.

Please could you please help me finding closed expression for the following double integral

restart;

with(LinearAlgebra);

rho := .25; sigma := .1; SNR := 25;                                                                    

 a := (32*12)*Pi*sqrt(1-rho^2...

Hi, i am new to Maple. I was trying to solve some problem and came up with the following difficulty:

When i give input

a_i=(1+k_i)/(1-k_i);

and then do a_1 it gives the proper output as 

(1+k1)/(1-k1);

But whenever i try to do

a_i,j=(k_i-k_j)

I am using an old package, Janet, I got from http://wwwb.math.rwth-aachen.de/Janet/janet.html with Maple 16.

I changed the libname to point to the directory where the package files are.

Few days ago I was able to call help(Janet); without any problems but now everytime I try to call help(Janet)

Maple front-end loses connection to the ihe Maple kernel.

The package loads fine...

Hello,

Please, i want to resolve a non linear eaquation with Lagrange multiplier with 4 variables.

But it dosen't work.

Can you help me in this.

Thank you

Multiplicateur_de_La.mw

Good afternoon everybody,

I have a question regarding the command matrixplot. I wrote a programm with two input parameters:

v=[seq(0.29+i/100,i=1..8)]

k=[seq(2*i,i=1..50)]*0.5*10^(-15)

and I get a matrix [8x50] that I want plot.

The problem with matrixplot is that I get in the axis the number of rows and columns but I would like to put the value of v and k instead of the row/column's number. Someone knows how I can change that?

Hi all,

I have a problem with dsolve. I have a 2-d (thin shell) theory which I am solving with Maple. For a Simply supported beam, there is no problem, it solution is more or less what you would expect. When I make 1 side as a clamped edge (x=0), there is a problem. The total result is 'ok', but it gives a peak in the 2nd derivative of Urn at x=0. This peak results in unrealistic stresses, etc.

I don't exactly know what the problem is. It seems there is a problem...

Dear All,

I am trying to call the maple function fsolve in the matlab. I have used maple('fsolve(x^2-4)'). It worked.

Now in the matlab code I have defined another variable. let us say a = 10.  Now I am trying to call the fsolve as follows.

maple('fsolve(a*x^2-4)')

I ended up with the following error.

Error, (in fsolve) number of equations, 1, does not match number of variables, 2

Hi...

I need to solve the pde 

eq := diff(diff(V(y, t), y, y)-alpha^2*V(y, t), t) = -I*alpha*U(y)*(diff(V(y, t), y, y)-alpha^2*V(y, t))-I*alpha*(diff(U(y), y, y))*V(y, t)-(diff(V(y, t), y, y))+alpha^2*V(y, t)

with U(y) as a known function

and boundary conditions as

bcs := {V(-1, t) = 0, V(1, t) = 0, (D[1](V))(-1, t) = 0, (D[1](V))(1, t) = 0}

and initial condition as

V(y,0)=phi(y);

both of phi(y) and U(y) can...