We are trying to obtain an analytical solution of an integral in Maple. When solved numerically the integral converges, but we are not able to get an analytical solution. Any ideas?

The constants in the integral is computed independently, not sure if knowing them can help. The values are r=0.06, kappa=2.6, myksi=2.18, rho=-0.21, stdk=382.2, stds=47.8, kji=52.9 and ksi=62.3. We kind of need the analytical solution to handle the expression in further calculations, and...

how can i overcome the error that i am being given for the problem below 3*t*d(t,x(t),diff(x(t),t))² = 0

Quick one,

How do I count the number of terms in a polynomial

i.e. x^3+x+1 has 3 terms. I have big polynomials with hundreds of time and I want a way to count them

Many thanks

Pete

HI all,

I am trying to figure out in MAPLE how can I write     A * sin*theta + B* cos* theta  in the form as follows:

                                                   ...

hi

in matlab POLYNOMIAL EIGENVALUE PROBLEM solve whit polyeig code 

why maple can't solve  ?!?

Hi everyone,

I am trying to build a function of dsolve/numeric solution which would not include procedures for defining the value of it.

First, I need to extract solution as a 2-d array, which will contain all evaluated points of solution.

Next, I want to define a function from this set of points (like interpolation).

Say, I have an array or list of numbers (2-d points).

Now comes the main question: is there a way to interpolate some...

Let (d1): x = 2*t +1, y = t-2, z =-2*t+2 and 

(d2): x = 2-m, y = 3+m,z = 4+m 

be two lines and (P): x - y + z - 6 = 0 be a plane. Write the equation of the line (Delta), knowing that (Delta) parallel to (P) and cuts (d1), (d2) at the points M and N, respectively so that MN = 3*sqrt(6).

Hi,

I have a PDE system that I keep getting the "pdsolve->Warning: System is inconsistent" message.  Is there a way to see where the contradiction is, i.e. where everything is breaking down.  It is fairly complicated and not easy to eyeball such a thing.

Thanks!

Ryan

HI TO ALL. I M IN THE THEISIS PHASE OF MY MS. I NEED CODES FOR SOLVING A JOB SHOP SCHEDULING PROBLEM USING ANT COLONY OPTIMIZATION (ACO). IF ANY ONE HAS SUCH AN ACO CODE DEVELOPED TO SOLVE ANY TYPE OF JOB SHOP SCHEDULIGN PROBLEM, PLZ PLZ SHARE THAT AT seoccsf7@hotmail.com

I WILL BE GREATFUL

REGARDS 

which function equivalent to reduce q modulo p?

Let a sequence( a_n  ) defined by a_n=1,3,6,12,33,51,...and n=1,2,3,.... Find formula a_n?

Today, after hours of hunting a persistent bug in a worksheet, I discovered something i did not know about Maples evaluation strategy. Consider the following Maple code:

restart:
a:=1:
b:=a:
b:=2:
a;

Now the variable 'a' holds the value of 1. Now consider the case where 'a' is a vector:

restart;
a:=<1,1>:

Well,

Basically I know that.

I just hoped there is some walkaround this problem.

It seems now there is not.

The problem I am trying to solve is how I can construct an iterative procedure where function is computed from numerical solution of the ODE system (done) and then this very function is used to recalculate the solution of this ODE system.

This is my attempt to impement some sort of  gradient projection method to the optimal...

Hello,

The Maxima package has a function RATWEIGHT that can be used to assign weights to variables:

Function: RATWEIGHT (v1, w1, ..., vn, wn)assigns a weight of wi to the variable vi. This causes a term to be replaced by 0 if its weight exceeds the value of the variable RATWTLVL [default is FALSE which means no truncation]. The weight of a term...

Thanks,

However, this does not work.

My problem is not to plot U as a function of time, but somehow convert the function.

I mean, in Your solution U is defined through X(t) and thus Maple is evaluating the solution for DE every time the U is called.

However I would like to have U as function of t without precense of X(t). Since X(t) is a known procedure, there might be the way to explicitly define U as a function of t only, after the evlauation of procedure X(t).