I am sorry for bothering you all with the asymptotic again and again. Actually I am unable to find a magic way to evaluate an asymptotic expension.  

R3Infintyplots_S0=.mws

i have a sample but i dont understand what does makes, please help me ...

best regards

MaxVar(1,1)=evalf((1+RanNum(1,1)()/100))

my question is about the parentheses after the matrix RanNum(1,1), why is here ¿? what does makes ¿?

Dear Maple users

Many problems in mathematicis can be traced back to solving equations. It is at the heart of a program like Maple. I know solving equations in general can be immensely difficult. As an example The Riemann hypothesis has to do with the solution of a specific equation, the Riemann zeta function, and is probably the most famous unsolved problem today. I just mention this one to emphasize how hard it can be to solve an equation. Therefore I know...

Hi all,

 I am trying to solve a system of equations- ode's and nonliear algebraic equations numerically. The maple dsolve actually solves this type of system but the problem is it is taking lot of time to solve. I think it is not solving the algebraic equation numerically.

i am using dsolve as: dsolve({eqs,ic},type=numeric,output=listprocedure). 

Is there any other way to specify maple dsolve to solve all equations including algebraic numerically?  

I was going to demonstrate the action of Maple for a symmetric 3 by 3 real matrix with 1, 2, and 3 distinct eigenvalues and got strange results.  It may be that I need to explicitly tell Maple that the matrix is symmetric and real. (How would I do this?)

For example, after   with(LinearAlgebra)    I put   tmat1:=Matrix(3,3,[1,2,3,2,4,5,3,5,6]), and get eigenvalues with small imaginary parts (!).   When I put   tmat2:=Matrix(3,3,[0,1,1,1,0,1,1,1,0...

The complexplot3d command can color by using (complex) argument for the hue, and compute height z by magnitude. So, when rotated to view the x-y plane straight on, it can provide a nice coloring of the argument of whatever complex-valued expression is being plotted.

Another way to obtain a similar plot is to use densityplot (with appropriate values for its scaletorange option) and apply argument to the expression or function being plotted. For some kinds of complex-valued...

Hi,

Was wondering why I am getting such a variety of outputs when I input what is essentially the same expression each time ?

See attached screenshot.

thanks,
Andrew

There have been many times when I want to see what the graph a function looks like, but don't have numbers to put in there. Sure, I could just plug in numbers, but that often affects the graph - such as slope. Is there any way for Maple to show me the shape of a graph with a symbolic function?

Hi,

How to compress the following equation to make it more easly readable.

A:=-1/2*Phi*(variphi*sigma*sinh(l*S0)*cosh(l)-variphi*sigma*sinh(l*S0)*sinh(l)-variphi*sigma*sinh(l*S0)*R1*cosh(l)+variphi*sigma*sinh(l*S0)*R1*sinh(l)+cosh(l*S0)*l*N_1*cosh(l)-cosh(l*S0)*l*N_1*sinh(l))/l/(-R1*R2*cosh(-l+l*S0)*sinh(l*S0)+sinh(-l+l*S0)*cosh(l*S0));

Thanks

If I have an ODE say dg/dx = g I can't seem to get a solution I can work with directly. Of course with dsolve I can get an expression which I can cut and paste into a function definition: ie.

ode:=diff(g(x),x) - g = 0

dsolve(ode)

g:=x->"output from dsolve"

But how do I get g(x) without the cut and paste. I have tried a number of ideas (rhs, subs) but I cannot get a function I can use  for example to calculate g(0) or g(1)

The June edition of the IBM Ponder This website poses the following puzzle:

Assume that cars have a length of two units and that they are parked along the circumference of a circle whose length is 100 units, which is marked as 100 segments, each one exactly one unit long.

A car can park on any two adjacent free segments (i.e., it does not need any extra maneuvering space).

Hi,

Maple 13 here. Is there a tutor which gives you a step-by-step solving process for linear 1st and 2nd order ODEs (similar to the one for Calculus/Integration Methods) ? I have been disappointed in not being able to find this, unless I am missing something.

thanks,
Andrew

The problem

Back in 1996 I was working for the Symbolic Computation Group at the University of Waterloo, developing algorithms and code...

Good Afternoon.

I have a problem with that project, because the when i move the dial (DialKp1) the component Mathbase don´t update the lat change.

I don´t know how can i do for updating it?

23-06-2011-modelo_di.mw

Hi Experts,

Here is my File. I use the DirectSearch2 Library.

Searching the Minimum works fine. (800 sec on i7 PC)

But the Datafit runs endless.

I tried to make the fit with min SSE that works, but why does DataFit not succeed?

Thanks for answering.

Walter

GroundWater_Solution.mw