Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

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

 

I'm trying to find a function f(n) that will give the rightsum approximation of x^6 on the interval 0..4 using n rectangles and so far im coming up with nada.

So far this is what I have.

f:=n->rightsum(n^6, n=0..4,n);

but then later I'm trying to use this in a limit to find the area under the curve as n goes to infinity and I keep gettin infinity back which it absolutely is not. Would love to get some help on this as I have been droning on it for to long.

I looked at the Maple help menu and got acquainted with the op command to extract the elements of a list. How can I extract particular elements of a list. For example....

 

a:=[2, sqrt(7), "john", sin(57)]

how can I extract elements 2, john and sin(57) ? I tried op( [1,3,4] ,a) but I get an error message.

Thanks in advance!

 

 

<p>Hey Folks,</p>
<p>I've got a pretty simple question here. I use maple to check my work and I'm wondering how  to get a numerical approximate of a Riemann sum containing a trig function. I don't want sin in the answer. For example:</p>
<p><maple>(1/40)*Pi*(Sum((1/40)*sin*i*Pi, i = 1 .. 10))</maple></p>
<p>A<maple>pproximates to 0.33928 sin.</maple></p>
<p><maple></maple><maple>Any help would be greatly appreciated. Cheers.</maple></p>
<p><maple></maple></p>

Sometimes I realize that I need a approximate result rather than an exact answer after I enter Maple command. Is there a way to apply the evalf command at the very end of an input? Thanks in advance!!

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