In a previous post I described how to call OpenMaple from a C# application (see: Using OpenMaple with C#) Now, I'd like to tackle the reverse problem: how do I call a C# .dll from within Maple? The way to do this involves using Component Object Model (COM) interoperability in the Microsoft .NET Framework. Because Maple's kernel is written in an "unmanaged" language, a wrapper is needed in order to bridge to your managed C# code. This article will outline the steps needed to create this bridge and get Maple talking to C#.

Hello everyone,

In plotting a function with discontinuities such as y = tan(x), I know that using the plot options "discont=true, scaling=constrained" allows for normal plotting with vertical asymptotes.  But how do I do with with plotting a curve given by parametric equations?  My curve has a skewed symptote and I can't get my plot to show this.  It just "blows up" and the scaling goes to infinity.  

 

Thank you, anyone, for your help.

 

        David

Hello All, I read some other posts on "stack limits" and they were not too helpful. In a particular case there seemed to be a bug, as stated by a Maple kernel developer, but I can't imagine that being the problem here. I have a MacBook Pro (Intel) using Maple 11.02 with 2GB of RAM. The following code displays the stacklimit eror causing a failure with the kernel connection whenever I try to simplify the last line. Does anyone have any ideas? Thanks much, Steve. P.S. Here is the worksheet lines: restart one := 1/((x*Dd-x^2*Dcj)*sqrt(x^2-1))

I have two column matrices that I have imported into Maple from Excel (an 'x' and 'y' matrix). The algorithm I am using (that attempts to fit a circle to the data) requires the points to be in an array of the following format:

pts:=[[x1,y1],[x2,y2]...];

How can I run a loop, or other application, to pair the respective pointsto each other in an array such as the one above?

Thanks for any help.

I am looking for some practical advice on how the cool kids split a Maple worksheet across multiple files. I have been reading through the help sections on procedures and modules, but most of the information is for self-contained sections of code in one file. I have come across some info in the help sections on using multiple files, but I am hoping to find out if there is a standard, recommended way of doing this.

How I can write a procedure to explore boolean matrix??

Hi, have a problem with expressions of the following type: -s^3*t^2+t^2*s+t*(1-s*t-s+s^2*t)^(2/5)*(-1+s*t)^(3/5)*(-1+s)^(3/5)*s+s*t+s-1-t+(1-s*t-s+s^2*t)^(2/5)*(-1+s*t)^(3/5)*(-1+s)^(3/5)*t+(1-s*t-s+s^2*t)^(2/5)*(-1+s*t)^(3/5)*(-1+s)^(3/5); Using simplify does not work. However, when I manually collect all terms with fractional powers so that the expression becomes -s^3*t^2+t^2*s+t*((1-s*t-s+s^2*t)^(2)*(-1+s*t)^(3)*(-1+s)^(3))^(1/5)*s+s*t+s-1-t+((1-s*t-s+s^2*t)^(2)*(-1+s*t)^(3)*(-1+s)^(3))^(1/5)*t+((1-s*t-s+s^2*t)^(2)*(-1+s*t)^(3)*(-1+s)^(3))^(1/5);

I am trying to extract numerical data from the following plot? > data := plot({H85, H95, H97, H99}, t = 0 .. 25) H99 for example is a function like this: H99 := (0.8375209380e-2*exp(0.9949999999e-1*t)+19.99162479)*exp(-0.9949999999e-1*t) Could someone please help me out... thanks

Hello, this is my first post here and I'm relatively new to Maple. I'm using version 10 (fully updated) and have been struggling for the better part of the past two days with what should be a simple fix. I have two functions which I am equating, and then using Solve to put it in terms of one of the variables. Maple is consistently, and for a range of different functions, returning incomplete solution sets. Sometimes it is aware the set is incomplete whereas other times it is not, returning only a single result where there should be two (or more).

Some years ago, before the advent of the Statistics package, a colleague asked for a fast way to generate thousands of normally distributed random numbers in Maple. The suggestion that worked quickest and most easily (using existing, simple Maple Library routines) was to generate random deviates using the usual formula associated with the distribution. But the key was to replace the scalar values (representing the uniformly distributed input) with a whole Matrix of input values....

Hi all

I need to Solve an expression of this kind:

N=sum(  z / (1-e) ,j=1..infinity)

where N and c are given numerical constants;

I need to obtain a function z(x) to plot another function F( z(x) , x ) in function of x

solve( N=sum(  z / (1-e) ,j=1..infinity), z)

that gives me "warning:solutions may have been lost"

if i try to evaluate the sum, it freezes my computer just for the first 25 terms...

  

 

Hi everybody.

In the help pages, I read that :

"This PLU decomposition generates a square unit lower triangular L factor and an upper triangular factor U with the same dimensions as A so that
                                A = P . L . U
.  The Matrix P is a permutation Matrix."

While looking into that subject, Maple offer me this:

Some years ago I have read about the method of Determinant Decision Diagrams. With this method one can analyze relatively large electrical circuits symbolically (for example opamp uA741 as a benchmark) . The authors wrote they had implemented the algorithm in Maple. I wonder if anybody read about this or tried to implement this algorithm. It would be nice to have this capability in Maple.

Here is a link:

http://portal.acm.org/citation.cfm?id=266510