I am trying to take the inverse fourier transform of a dsolve/numeric in Maple 15 and I'm wondering if there is a way to do something similar to the fftshif in Matlab.

Here is the sheet so far, the fft's happen at the very bottom.  (any advice on the flow/syntax of the sheet is welcome too)

Maple15Spectra-maple.mw

Hello everyone

It seems I can't live without keyboard shortcuts :-) Is there is a short cut for the following commands:

execute the entire worksheet
remove output from sheet
join/split execution groups

I'm on mac.

thanks.

hi

i have the following function

f[1](x):=_C2 (e)^x-_C1 (e)^(-x)+1/2 x (e)^(-x) h1+1/2 (e)^(-x) h1+_C3

with thease boundary conditions:   f[1](x))=0,diff(f[1](x),x))=1,diff(f[1](x),x),x=infinity)

i want to find cinstants C1,C2,C3 where h1 is arbitrary parametr.

i write the following code but its doesnt work correctly

s1:=simplify(subs(x=0,f[1](x))=0);
s2:=simplify(subs(x=0,diff(f[1](x),x))=1);

I am calculating the dotproduct in maple 15 of two very large vectors. Are there any tricks/ways to speed up such a calculation? Maple is taking a very long time to execute the calculation and I am unsure whether it will actually return a result.

I'm using maple code of the form DotProduct(vector1,vector2);

Any advice ?

On the usenet newsgroup sci.math.symbolic Prof. Richard Fateman posted a question (or here) recently about what mechanisms a math application could use to handle the situation of negligible imaginary parts of computed data when plotting.

An example could...

Good Morning.

I would like to know where Maple is statistics compared with other software. As a justification for the thesis i am doing. I found a page http://www.scientificweb.com/ncrunch/, but a report in 2008. I wish something more recent.

Thanks

I understand that porting Maple to Android would be a pretty big job, but does anyone know of any plans to at least make an Android program capable of viewing Maple worksheets?  It would be really handy to be able to show my work to someone using an Android tablet, which is certainly capable of rendering graphs and such.

Ok, I want to generate a series like the one below:
I the first period the value is 0. In the second period
we can either move up one or down one. In the third
period given a down move in the last period we can
either move down again [-1-1] or we can move up [-1+1]
Given a up move in the last period we can
either move down [+1-1] or we can move up [+1+1] 

[0]
[-1], [+1]
[-1-1],[-1+1],[+1-1],[+1+1]


Does there exist any maple command that does this?

I performed the following procedure to simulate the function of Matlab soundsc(Scale data and play as sound).



N := 16000;
 t := Vector(N, i-> evalf(2*i/(N-1)) end proc);

sound1 := sin~((2*evalf(Pi)*440)*t);

aud := Create(sound1, duration = 10.0);

PlayWave := proc (data, SampleFreq)
local SoundFile;
setattribute(data, SampleFreq, 16, 1);
SoundFile := "Bflat3.wav";
Write(SoundFile, data);
process[launch](cat("sndrec32.exe ", SoundFile))

I have a matrix containing numeric values of functions. Each column corresponds to a function. The first element of each column is a name of a function and following elements are numeric values of this function.

For example:

t      a         b     c         d
0    0.5      38    0       0.9e-5

How to update a file extension m to extension mla ?
I will need to update the hdb file accompanying ?
Achievement in maple download the file with extension m, but does not display help.

Hello together,

thanks for helping me with my earlier problem. I now managed to put toether a plot which suits my purposes, but i can't manage to Export it using the e.g. plotsetup(gif, plotoutput = "C:\\Test.gif") command.

I don't get an output but a warning: Warning, ignoring axis information in _AXIS[n] structures

If i switch back to plotsetup(default) everything is displayed in the editor window.

Anybody any ideas? If...

Hi 

I have a area described by two functions x(eta,xi) and y(eta,xi) describing the x and y coordinate, respectively. I would like to plot this area for eta = -1..1, xi=-1..1. I have tried with plot([x, y], eta = -1 .. 1, xi = -1 .. 1, axes = boxed) but is does not work. How can i do this?

Thanks in advance.

Regards Brian 

How do I test a variable against itself to see if it has a value or not?

As an example

p1:=sin(x)
p2:=46

[seq(`if`(p||i=p||i,p||i,NULL),i=1..5)]  # when p||i actually equals p||i and not some value ie sequence should not include p3,p4 and p5

hi, i am a danish htx student and we use maple for our math lessons, when i started here i installed maple 13 and it has been working fine, but our serial runs out so i had to upgrade to maple 15. when i did i uninstalled the previous maple version and installed the 64 bit maple for my 64 bit windows vista. now when i try to do for instance f(x), the ( and ) breaks maple and all text/numbers vanishes, if i open my previous school homework they look empty aswell. clicking and...