Hi everyone.. Now, i learn Maplesim.. I want measures force between 2 frame(a and b). which are connected by prismatic joint.

But a force and moment sensor acts as a weld joint.. so althought i measured force but frame b can't move.

who can solve my problem??

thank very much!!!

PS: i want measure force 2 frame to calculate the friction between them.

Hi,

I would like to apply watson lemma on f(t) = 1/((t+1)*((t/a)-1)), with a a constant, and x tending to infinity.

The problem is that my integral I have to compute is not from 0, but from a....

My integral is : I = int (exp(-x*t)*(t^(λ))*f(t), t=a..∞), with λ>-1, x->∞.

I know that if a=0, and (taylor expansion) f(t) = ∑ b_n*(t^n), n=0..∞, then

I = ∑ b_n*Γ(λ+n+1)/(x^(λ+n+1)), n=0..∞.

Hi,

I'm trying to do get the Inverse of Matrix A, I tried this:

> restart;
> with(LinearAlgebra);
> A := Matrix(4, 4, [[1, 0, 0, 0], [0, 1, 0, 0], [1, l, l^2, l^3], [0, 1, l, l^2]]);
                     Matrix(%id = 83774380)
> B := MatrixInverse(A);
Error, (in LinearAlgebra:-MatrixInverse) singular matrix

 And got an error, could someone help me.

Thanks

I have a matrix m with 9 rows and 4 columns and when I enter the command below I get an error message:

num := product((z-(m[s,1]+I*m[s,2])),s = 1..9);
Error, Matrix index out of range

However, there is no problem if I use brute force:

If I extract the denominator of the following expression

> s:=(1/2/Pi+Q*(1-u^2)/(1+u^2))^2/((1+beta^2*(1/2/Pi+Q*(1-u^2)/(1+u^2))^2)*(1+u^2));

maple expands it automatically

s2:=denom(s);

but the result of solving the expanded denominator

solve(s2=0,u);

is different to the result of solving the non-expanded expression

of the system {x^2+y^2+z^2-2*x-4*y-6*z+13 = 0, 2*x^2+3*y^2+z^2-4*x-12*y+6*z-2 = 0} with Maple?

PS. Mathematica 7 solves it.

Hi,

I'm currently using a gridded search to find a global minimum.  I have 4 parameters which results in a really large search size (100 steps per parameter).  In order to reduce my computation time, I'd like to use a gradient search instead.  Does anyone have any code?

Thanks

Hill

Hi.i want to draw the picture which is in this SITE http://www.resurs.az/thumbnail.php?file=Qafqaz_Uni_370925279.jpg&size=article_medium  .Please help me...

 

I want to publish a Maple Program on Web. How I do ?
I want a MapleNET Server to run on a pc for fast.

I am very new to Maple and am trying to teach myself until next semester when I will be taking a course.

I am trying to make a GUI based worksheet to display a plot of a vector valued function (in R^2) and its velocity and acceleration vectors. I wrote code in a worksheet and it seems to work, but I am having trouble getting the plot to work when I put the code in a slider (to update continuosly as the value of t changes with the slider). I understand there are differences...

In the following examples I attempt to remove integer multiples of Pi from sin/cos. Nothing works.

Why? How do I make it work?

Thank you.

term1:=cos(Pi*(3*a-2*n));
> term2:=cos(3*Pi*a+2*Pi*n);
> term3:=cos(3*Pi*a-2*Pi*n);

                     term1 := cos(Pi (3 a - 2 n))


       ...

any of the numerical factors that multiply the successive terms in the expansion of an expression of the form  (x + a)^n,  for integral n,  in accordance with the binomial  theorem. These are any terms of the form
               ∑x^(n-k)*a^k*binomial(n,k)

how to get it.

convert((x+a)^n,Sum,x)

but ,i get a anwer that i don't want

Dear all!

I wrote a program but when I run it I get an error as: " can not evaluate the solution further right of ..., maxfun limit exceeded ". I tried some ways to work around it, for example I tried "maxfun=500000" and more. Also I tried "maxfun=0", but they don't work. How can I solve my problem?

O.K. Isolved this problem myself. We can solve such a problem in two different ways. 1.by adding the expression "method=mebdfi" and 2. by adding expression "'stiff=true'".

1 -√3 - x² -√2- x²  = 0

Look at this trinomial 
32a^4 + 18a^3 - 12a 

Write the polynomial as the product of the GCF of all its terms and a polynomial 

PLEase explain thanks