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

When I use ImportMatrix to import a MATLAB mat file, I get a list of names and values. Should I write a "for" loop to assign them in Maple or there is an easier way to do it?

i would like to nknow how can i eval a function wiith a matrix?

> restart; with(ArrayTools); with(LinearAlgebra); with(MTM);

 varhi := 10; 

varlo := 0; 

npar := 2; 

popsize := 9; 

par := (varhi-varlo)*RandomArray((proc (A) local i; 

if A::(rtable[column]) then 

seq(A(i), i = 1 .. NumElems(A)) else

 args; 

end if 

I have obtained the taylor series expansion of a function and got the coefficients as numbers.

I want to assign those coefficients to a variable.

I need your help.

Hello,

I'm quite new in Maple and stuck at one point. I think it is a trivial but I'm stuck anyways and hope somebody could help me here.

Following the DE system i'd like to be solved.

I am trying to determine if a particular system of 15 polynomial equations in 9 variables has a real solution using Maple's RegularChains library.  I am using the IsEmpty command which returns true if there are no solutions and false otherwise.  In Maple 16, this can be done using the command:

IsEmpty( sys, R ) ;

where "sys" is a list of equations and "R" is a polynomial ring, both of which I define in the worksheet.  But this syntax only works...

I need to keep parentheses surround some expression, e.g. (2x+1). However, Maple removes parentheses. Is there a way to keep them?

is there a maple function or does anyone have a proc that will return the number of significant figures given a number? For example, when given 0.38, the proc will return 2, or when given 2.897, the proc will return 4.

Hi all. I am trying to find the cube roots of -sqrt(6)-sqrt(18)*I in polar form. I have used the following commands but it does not convert the argument properly. Can anyone help? readlib(polar); sola:=solve(z^3=-sqrt(6)-sqrt(18)*I,z); polar(sola[1]); polar(sola[2]); polar(sola[3]); I have also used the following but it could not simplify the argument/angle. sola1 := simplify(convert(sola[1], polar)); Can anyone please suggest a fix to this? The argument...

Hi, anyone can show me how to expand this formula with Maple:

                            (x+1)^n

where n is an unknown integer. My expectation is x^n +n*x^(n-1)+...

 

Thank you and regards,

Bhm

Dear Maple users

I am working on importing data from an Excel-file "Data.xlsx" into Maple. This is done using the following commands:

> restart;
> with(ExcelTools);
> X := Import("Data.xlsx", 1, "A3:A63");

One strange behavior is the fact that I receive an error message: Error, (in ExcelTools:-Import) Could not open the file.

When I close the Maple file and open it again and reexecute, the error disappers and everything works....