Hello,

Suppose that S1,S2,S3 are 3 blocks of a matrix S := Matrix(...). I would like to do

out := ArrayTools:-Concatenate(2,convert(S1,vector),convert(S2,vector),convert(S3,vector)):

but in the case when I have n blocks.

Thanks,

Dimitar

I am aware of how to plot the feasible region defined by a system of linear inequalities (inequal in the plots package). Also, I can use the implicitplot command to plot the feasible region defined by a single nonlinear inequality. My question is, how do I plot the feasible region defined by a system of nonlinear inequalities. For example, how would a graph the region satisfying x>=0, y<=exp(-x), and y>=x^2?

I hope someone can help me.

I'm trying to integrate the following equation:

sin(v))*sqrt(cos(t)^2+4*sin(v)*sin(t)*cos(v)*cos(t)*sin(w)+4*cos(v)^2-cos(w)^2*cos(t)^2+cos(t)^2*cos(v)^2*cos(w)^2-5*cos(t)^2*cos(v)^2)

The boundaries are
v=0..1/2*Pi
w=0..2*Pi

I've tried evalf and simplify, but none of those worked. Does someone know how to solve this one?

I have program in txt,I want to copy it into the command-line maple 15 as belows:

How to do it. Ctrl+V is useless

code:
> MEMBER := proc(x::anything, L::list, p::evaln) local i;
> for i to nops(L) do
> if x=L[i] then
> if nargs>2 then p := i end if;
> RETURN(true)
> end if
> end do;

Hi all,

I am trying to check a conditional statement in maple, I know it is true but my teacher has us do the entire assignment in maple. I am proving the alternating series test of convergence for a series and need to show that the Un's are all positive so

I am trying to check this statement for truth:

5/sqrt(x+4) > 0 for all real values x > 1

Hi
I run Maple 15 on an Acer laptop with Windows 7 and have the following problem:

When my Maple documents become "too" long, some of the vectors I have created seem to become tables instead (without me doing anything) rendering vector multiplications and additions/subtractions impossible (they'll throw an error; something like it not being possible to multiply a vector and a table. As if one of the vectors in my multiplication has become a table). Should it...

Can maple solve this kind of inequality:
piecewise(x > k, x-k, 0) > q * piecewise(x*(1+a) - k > 0, x*(1+a) - k, 0) + p * piecewise(x*(1+b) - k > 0, x*(1+a) - k, 0)
where p, q, a, b, k are parameters?

I'm trying solve-command with allsolutions option but it doesn't work :(

Thanks for answering :)

Hi

How can I use loop-varible in a definition of piecewise function? For example, when I do:

for k to 5 do

f[k] := x -> piecewise(x > 0, k, 0);

end do;

f[3](1);

f[2](1);

I get:

f[3](1) = 6

f[2](1) = 6

Hi everyone,

I would like to do:

f:=unapply(x**2,x);
j:=unapply(2*f(x),f(x));

Basically it is to define j(f(x))

But this is doesn't work. What is the right way to do it?\

My final goal is to calculate int(j(f(x)), f(x)=-infinity..infinity).

I have the following lines of code:

W:=sum((k^(2*i))*sum((e^(j))*w[i,j](r,t),j=0..2),i=0..2);

P:=sum((k^(2*i+1))*sum((e^(j))*w[i,j](r,t),j=0..2),i=0..2);

for c from 0 to 2 do

  for d from 0 to 2 do

    rw[c,d]:=coeff(coeff((k/(2*r))*(diff(W,r)*diff(P,t)-diff(W,t)*diff(P,r)),k,2*c),e,d)

  end do

end do;

I mean to compute the coefficients in front of powers of e inside...

I more than 20000 data points on a an excel file and i want to plot one column against the other. So I imported 10 data points from each column seperately and tried ploting it as a normal plot but it would not work. I kept on getting error messages like 

plot([CosAa,CosBb]);

Error, (in plot) incorrect first argument [Array(1..10, 1..1, {(1, 1) = 0.83333e-2,
 (2, 1) = 0.166666e-1, (3, 1) = 0.249999e-1, (4, 1) = 0.333332e-1,
 (5, 1) = 0.416665e-1, (6, 1...

Like this! Some error. How to do it

[IMG]http://i730.photobucket.com/albums/ww309/ytyyutianyun/Capture-6.png[/IMG]

I have a 6 x 6 matrix. I want to employ Cramer's rule to solve Gx=Θ. I need to sequently substitute column Vector Θ into the matrix columns. I can't get this to work. I have only being using Maple for a couple of weeks so still finding my way.

myf:=(mu,sigma)->int(exp(-(x-mu)^2/2/sigma^2)/sigma/sqrt(2*Pi)/(1+exp(-x)),x=-infinity..infinity);

plot3d('myf(mu,sigma)',mu=-5..5,sigma=0.5..10);

This plot was never created. I think it's taking too long to evaluate it when it's divegent.

Hi all,

For my research purpose, I need to integrate this function. I understand that there maybe values for which this integration is divegent. But is there a way to look into it? Say creat...

Hello,

Could you please help me with the following system of equations:

> restart; with(student);
> Z[0] = 377;
> solve({Z = 1/(j*w*C[1]+1/(j*w*L[1])+1/R)+1/(j*w*C[2]+1/(j*w*L[2])), C[1] = w[c]*(w[0]^2-w[c]^2)*(w[2]^2-w[1]^2)/(2*Z[0]*(w[1]^2-w[c]^2)*(w[0]^2-w[1]^2)), C[2] = w[c]*(w[0]^2-w[c]^2)*(w[2]^2-w[1]^2)/(2*Z[0]*(w[1]^2-w[c]^2)*(w[2]^2-w[c]^2)*(w[2]^2-w[0]^2)), L[1] = 1/(w[1]^2*C[1]), L[2] = 1/(w[2]^2*C[2]), R[1] = subs(w = w[1], 2*Z[0]*(1-S[21...