## Is there a way to find out the rate of decay of fu...

Is there a way to find out the rate of decay of function f(x) when x-> +infinity? Hi all, I just wanted to use this real-world engineering problem to practice problem-solving using Maple. Suppose I have a function f(x) (probably complex valued), how to find out its rate of decay as x approaches +infinity? I used "limit" but it will give me a value, not a functional form. I already knew my function has a limit =0 at x=+infinity. And it is of fast decay. I would like to bound the limiting behavior of f(x) by exp(-alpha*x) for some suitable constant alpha. Is there a way to handle this in Maple?

## MapleNet - library use

by: Maple
I would like to set up library(s) of routines that can be accessed as part of MapleNet applications. MapleNet applications are prevented from doing file i/o unless you specifically "unprotect" your server. Is there a way to set up libraries on my web server to safely get around it? Or is there a way to include my library routines while I'm building my maplet application, without copying and pasting in the source?

## How to insert text in worksheet mode....

I am using Maple since a year and I am used to work in the classic worksheet. Now I wanted to try out the regular worksheet (you also have document mode). This worksheet is completly different from the classic one. By example I can not find a way to insert text in that worksheet. I click 'text' (F5) then 'Maple Input' is highlighted. I change it to 'text' and type some text. I press enter and ' ";" is missing ' is displayed. This is just text not a Maple command... How can I let this sheet now I only want to insert text? Thanks in advance, Pieter

## Stop a section in maple 10 classic worksheet expan...

Is it possible to stop a section in maple 10 classic worksheet expanding on execution? I see from past postings that you cannot lock the section but I just want to keep it closed. I only want to see the final results on execution and I have to scroll past all the expanded sections all or click on all the sections to close them thanks

## Iterating an Equilibrium - fsolve...

Hi, I am new to Maple and am having trouble with what should be a simple task. I have a series of simultaneoous equations of the form a*x+b*y=c etc. I have found an initial equilibrium by choosing values of x and y which give me reasonable values of a and b (using the Solve command I have output of a,b,c,x,y which satisfy my equations). Now, I need to use the parameters I have, my a,b,c, to try and retrieve my x and y (my real aim in this is to see the effect on the x,y when I change the a,b,c). When I try and put the equations plus parameter values into Solve it takes a very long time to solve (I stop after 20mins). What I want to do is use the equilibrium values I obtained before to give Maple a starting point to search for a solution.

## Parallelize an existing Fortran code and generate...

Hi Folks, Here is a numerical integration program: http://people.scs.fsu.edu/~burkardt/f_src/quadpack/quadpack.f90 In evaluating the integrand functions, it is good to do two function evaluations at the same time simultaneously. I just found that I have two CPUs Pentium Xeon 2.4GHz, each supporing only up to SSE2. Although the CPUs are slow, but if I can utilize them to do parallel computing of the numerical integration. It would be great! But I am not a Fortran expert, nor am I a CS major... Could anybody give some easy-to-follow advice on how to make that code parallel on two CPUs?

## Maplet element table...

Documentation on how to reference or assign values to elements in Table is limited. I uploaded a copy of a simple code (690_MTable) which tries to assign values to the elements the table. Code does not give and error message but does not do what I wanted to do. Please replace this text with the link to your file. The link can be found in the View 690_MTable.mw on MapleNet or Download 690_MTable.mw

## Why am I only getting 2 points?...

I can plot this fine in Mathcad so I know it should work. But in Maple I am only getting a single point at 0 and another at 10. plot( (-1)^x, x=0..10,y=-3..3, color=blue, style=point); Thanks for any help, glenn

## Function as a parameter in proc...

I want to write the function into the proc. test:=proc(h) h(1.1); end; proc(h) ... end; It doesn't gives what I want: test(x^3); 3 x(1.1) I would like to obtain 1.331 . More explicitly, how can I write into a proc a function directly, say x^3? (Not defining earlier h:=x->x^3 .)

## Differential Operator...

I want to define the operator L(g):=(phi*D)(g), which to be understood L(g)(x):=phi(x)*g'(x), phi is a fixed smooth function. One solution would be to write a procedure, but I would like a more elegant method. How can I do it?

## C codegen questions, errors, warnings and others...

Hi all, I am having lots of trouble using C codegen in generating C code from Maple expressions. My questions are: 1. How to assume each element of a whole array or vector >0? Of course I can do: Assume (a>0, a>0, a>0)... But I have "m" elements, how can I do that for all m elements? 2. What to do if the output says "the output length exceeds maximum limit of 1000000"? This occurred when I tried to "simplify" some complicated expression... obviously Maple did get some results, but it refused to print them out due to length limit, ... 3. There is no way to translate the result of "JJ16:=optimize(JJ15, 'tryhard')"?

## How differentiate and integrate a function of arra...

I have a function of array x[n]: f.e. f:= x + x*x + x*x*x. How to compute a derivative with respect to x,x,x ? diff(f,x) returns 0. Another question: I need to evaluate n- multidimensional integral: int... ( int( int(f,x=0..1) , x=0..1, ..... , x[n]=0..1 ). How shall I write ?

## 3d Complex Plots

by: Maple

Here are more 3D Strange Attractors, the formula I used is a PickOver which is described in my last post, every plot has 10000 iterations(it could be more), you will find that some plots has shape of a Galaxy which I found very interesting because it is a relatively simple formula!! What more things could be so simple!!?? Gravitation: Gravitation(different angle): Tornadoe: Tornadoe(different angle and coloring): Galaxies: Galaxies(different angle): Constelation: Thats all for now... If you have a question, suggestion, or an idea for an algorithm, write to me. Scasbyte. (scasbyte@hotmail.com)

## Maple 11 Tensors in Physics Package Wish List

by: Maple
Maple 11 has included indicial notation capability to its new Physics package. This is a good start in performing tensorial calculations using Einsteinian summation convention. However, I wish that Maple further adds the following capabilities to make this package of practical use to folks involved in tensor analysis. This wish list is based upon my personal experience in using tensor analysis for continuum-mechanics and is in no way representative of the community involved in other fields like the theory of relativity. 1) Both covariant and contravariant indices are denoted in subscript. Including the convention of posting counter and covariant indices in super and subscripts, respectively, will help to improve the readability of the printed results.