can someone please tell me why maple says that x=root(x^2+1)/x=.5root(2+root(2)) please someone help, or even better that why does arcsin(1/x)=arctan(x)=>x=-root(-2+root(20))/(-1+root(5))???????

Hi,

I want to solve the following inequation: solve( -a + sqrt(a^2 - 4*x) < 0, [x]) assuming a>0

the result from maple is: x < 0, (1/4) a^2 < x

which is wrong!

anybody can tell me why?

Thank you,

CN

Hi, I am defining a matrix this way: m := Matrix(2, 3): But I don't want zero value to be assigned by default to its elements, instead I want to have them as just m[i,j] and not zero. Please tell me how I can do that. Thanx,

Is it possible to print a hyperlink to the worksheet (programatically, not by clicking menu)? In Maple 13 worksheets are errors and warnings displayed as hyperlinks to web.

 

I have designed a Maplet that can load time series data from any selected csv file (data organized in columns) 

and plot such a time series with the help of a Dropdown list. I think such a functionality is something Maple is missing.

I would like to have a simple button in the Maple original meny where you can load such a maplet from.

However , the maplet still have some problems which I was wondering if someone could help me iron out :-)

I have attached the worksheet.

 

Hi, I want to construct a general 3 by 3 matrix, but its form is symmetric. How can I do that? As the result maple must consider a[1,2]=a[2,1] in calculations afterwards. Thank you,

Hello,

I wanted to use the Split command of StringTools package and I realized that it is different from the Split command in Visual Basic.

In VB one can give a third argument to define the maximum numbers of splittings:
For example : in Visual Basic returns the array . , i.e.the function splits the string at the first occurrence of the ":".

It would be useful the improve this command in Maple to have this possibility.

By unexpected, I mean unexpected to me, of course.

The following substitution fails:

> A := y*(f[x]-z)/(f(x)-y);

> subs({(f[x]-z)/(f(x)-y)=lambda},eval(A));

but if I replace the multiplication by an addition, the substitution works:

> B := y+(f[x]-z)/(f(x)-y);
> subs({(f[x]-z)/(f(x)-y)=lambda},eval(B));

Or if I simplify the expression, the substitution also works:

> C := y*(f[x]-z);
> subs({(f[x]-z)=lambda},eval(C));

How come? Is there a way to make the substitution sought into A?

Good Night all:

Anybody could tell me how can I obtain this integral with maple?

int(x^s*exp(-1/2*(x*(1+k)+exp(-x))), x = -infinity .. infinity)

I am trying to solve the following problem numerically

diff(u(t), t) = u(t)^4-u(t)+1

I am getting the following message:

cannot evaluate the solution further right of .41669147e-4, probably a singularity

Appreciating any help

Hello, I am new here and hope to post in the right section. I am encountering a few problems with learning myself how to construct larger maplets. The first problem regards the simple enabling / disabling of a button with a check box. See the example code below. If the checkbox is selected, I would like to have the button enabled, and if the checkbox is not selected, it should be disabled. Simple as that, but I can't find out what I need to do to get the code working. The 'CB1'('value') statement is not of the correct type??

Hello Everybody I am very new to Maple and have a problem that I need help to. I have an equation and a plot in Maple that I need outputted to Excel for plotting in Excel. Is there any way to output the relevant x-y coordinates to a data file so that I can plot in Excel or can I directly output the x-y data straight into excel? Here is an example of the last few lines of Maple code. What lines of code should I add to this to get what I want? > t := .15; > r1 := 5;

Hello Everyone

I wonder if anybody can help. I'm trying to use maple to find the largest mutual sequences of digits in two lists of 5000 dozenal (base 12) digits (I've tried searching on Maple help for a function that would do this, but am having trouble as I'm not sure what this would be called - a fellow music student suggested correlation - would this be correct?)

On a small scale, the function I am looking for would return the following sequence:

[5, A, 3, 8, 9]

from the example lists

A:= [1, 7, 8, 5, A, 3, 8, 9, B, 4] and

I'm trying to write a code that does the following...
 

It takes a polynomial of the form a*x + b*x + c and cycles through vales of x from say, 1 to 100 then tells me how many primes i get. But what i want to do is start with x + x + 1 and then do x + x + 2.. etc for values of a,b,c from again, 1-100.

The following code will print all polys of the form a*x + b*x + c for a,b,c from 1-100.

for a to 100 do

for b to 100 do

for c to 100 do

print(a*x + b*x + c)

Bonsoir! Je cherche à déterminer la hauteur maximale atteinte par une fusée à eau, en fonction du volume d'eau initiale. Je dispose déjà de deux équations, l'une reliant la variation de masse à la vitesse d'éjection de l'eau, l'autre résultant du principe fondamental de la dynamique. Neanmoins, il me semble que je devrais avoir une (ou plusieurs ) equations reliant la hauteur aux paramètres des 2 equations citées précedemment.

Pourriez-vous m'aider?