I'd like to numerically compute integrals of the forms:

int(exp(-t)/((-3+2*exp(-(1/10)*t))*(-3+2*exp(-(9/10)*t))), t = 0 .. infinity); evalf(%)

where there are much more terms in the denominator, e.g.,

Int(e^(-t)/(product(-3+2*exp(-.1*(1-.1)^i*t), i = 0 .. A)), t = 0 .. infinity); evalf(%)

for some positive integer A. Even when I have three terms it takes so long... So how do I compute such integrals numerically with maple; what's the efficient...

Hi everyone

I'm new to the forum, but I hope you can help me with a problem concerning import of pictures to Maple. I'm working with diffraction from a rectangular and circular aperture. I haven't made the experiment yet, but I've thought about taking some pictures of the diffraction pattern and then use Maple to calculate the intensity of the light to make a three dimensional plot (intensity as a function of position).

Right now I just want to import a picture...

Hi, everybody,

I am a newbie of maple. I used maple to draw some function image, it's work pefectly. For higher quality I want to set a thick line width of axis but I don't know how to do. Help me please.

Best regard.

You would have thought I'd have learnt to make sure I've saved my work by now.

I've spent the last 4 hours or so working on a worksheet on Maple, without saving it once (I know, I know). It started acting slow-- by which I mean it was talking a while to actually type things, as opposed to running calculations-- and then the screen suddenly went grey, froze, and now my cursor turns into an hourglass when I mouseover the window.

It's been this way for the past 10 minutes.

Question: Graph the 4th degree polynomial with realcoefficients whose zeros are x=-2 (a repeated root), x=3 and x=0. Following all the graphing requirements as shown below:

- show the correct shape of the function without distortion or wasted space.

-show all the maxima, minima, and intercepts

-allow to read (x,y) coordinates of all the x and y intercepts and all the maxima and minima on the graph easily and clearly.

-have a...

please help me to draw national emblem of AZERBAIJAN.

Hi,

    I have this problem and I cannot find a way to perform this search that I want it to. 

I have a set consisting of integers and fractions.  What maple code can I use to select only the integers out of this set.

For example:

A:={1,1/2,9,5/2,6/4,8,10,11};

I want to choose only the integers out of this set...so I need to obtain a set with D:= {1,9,8,10,11}.

How do I do so?

Hi,

I'm teaching numerical analysis with Maple and then I started with fixed iteration method.

When I programed the method which is simple, I got the solution as:

restart:with(Student[NumericalAnalysis]):

f := x->2*tan(x)-x-1;

g := x->arctan((1/2)*x+1/2);   # fixed point method where the solution of x=g(x) is the the solution f(x)=0

x[0] := 0.2; for k from 0 to 20 do x[k+1] := evalf(g(x[k])) end do; this line give the solution

How can I plot on the same graph the Normal,Tangent and Binormal vectors from a Position Vector?

Thanks

> restart;
> with(DifferentialGeometry):with(LinearAlgebra):with(JetCalculus):with(Tools):with(PDEtools): with(DEtools):
> 
> declare(u(x(t),y(t),t),v(x(t),y(t),t));

             u(x(t), y(t), t) will now be displayed as u


                   x(t) will now be displayed as x


                   y(t) will now be displayed as y


             v(x(t), y(t), t) will now be displayed as v

> PDE_sys:={diff(u(x,y,t...

Was given the equations f(x)=x^3+3x+7 g(x)=tan(x^2+1)
Need to use maple to differentiate each of the following...
A. f(x) * g(x)
B. f(x)/g(x)
C. f( g(x) ) entered as f@g
D. g( f(x) )

How do i differentiate these, normally for its just D(f) but i tried D(f@g), D(f * g) but it doesnt look right. Please help!
THanks

Has anyone had any experience of using an eBook reader such as a Kindle to read/display any of the Maple manuals?

Hi everyone,

I'm having trouble solving a set of pdes and keep encountering the following error:

Error, (in pdsolve/indexlex) invalid input: a string/name list is expected for sort method `string`

I have been trying to find out why I get the error or what the indexlex error is but am stumped... I cannot find anything on the Maplesoft or mapleprimes websites about it.

This is the code I am using which is giving the error:

How do I download and save "MaplePrimes" ?

Thanks for your help!

I am using finite element analysis and have 47008 nodes, so require a 47008 by 47008 matrix.  I wish to create the matrix using a procedure and using if statements to fill in the matrix with the equations (mostly repeating and every element in each row is 0 excpet for 4 or 5).  Anyway, I have tested my solution method on a much smalller matrix and know it works.  My question is if there is a way to create such a large matrix without getting a memory error, and...