I would like to calculate the double integral

int(int((f(rcos(teta),rsin(teta)),r=1/sin2(teta)-cos(teta)..2sin(teta)),teta=pi/8..pi/2)

Where f:=(rcos(teta),rsin(teta))->1/(2sqrt(r^2cos^2(teta)+r^2sin^2(teta)))r

 

But i only manage to calculate the inner integral on maple. The assignment says that there should be an answer just that it will be very long but an answer where the second integral is not calculated is not an answer?

 

Hello,

I have already installed Maple on ubuntu but now I would like to install new version of Maple and I should unistall my previous version.

Instaltion - In bash I run "sh MapleInstallation.bin"

An iInstallation quide tells a lot about an instalation on linux but about uninstallation there is not any information.

Could you help me please?

Thanks

Vladimir

 Hi,

   I want to plot the followings in the only one coordinate system :

1) triangle of (0,0),(2,0),(0,2)

2)triangle of (0,0),(-2,0),(0,-2)

3) line y = -x

   what can ı use command for this. Thanks in advance

 

I want to plot this expression for some chosen value of 'n':

sum(sum((-1)^{k-j)*binomial(k,j)*j^(n), k=1..n ), j=1..k)

 

When i do the following:

> E := (-1)^(k-j)*binomial(k,j)*j^(n);

> plot([sum(sum(E,k=1..n),j=1..k)],n=(4..10));

I get: "Warning, unable to evaluate the function to numeric values in the region; see the plotting command's help page to ensure the calling sequence is correct"

I'm a very new user of Maple so i'm probably missing something obvious: please fill me in! :)
 

 

Hi, I'm using Maple 12, and am designing a maplet for a school project.

I have a window with a textbox called 'h' which is used by the maplet to generate the solution to the heat equation given those initial conditions (contained in textbox called 'h'). That part is working, but I would like to display the contents of that textbox in a label or textbox in another window which has a plot of the solution.  Is there an easy way to do this?

I have a component button that gives me a random numer in a MathContainer each time a press it.

How can I store such random number output in a list. I want to have a list of values where the first value in the list is the

random number that appeared the first time I pressed the button, the second value in the list is the random number that

appeared the second time I  pressed the button etc etc

 

I know how to access output  from a MathContainer

 

Hello!

I'm doing my first steps on Maple and tried to fight my problem, but was not able to map out a solution. So please help! Thanks!

I want to include an if-command in a sequence. Unfortunately my code seems to be incorrect. Error message: invalid sequence

Please have a look at the attached file.

 

How do I generate data from a multivariate normal distribution with a specific covariance matrix  and mean vector?

I am using Maple 12 and do not have additional toolboxes/libraries.

 

kind regards,

Harry Garst

Download 10624_help me.doc
View file details

 

Please help me.....

Hi ,everyone.When I entered the following code I got the error massage "Warning, solutions may have been lost." I want to solve x,how can I deal with this problem?Thanks a lot.

restart;
 p := 1730;
 r := .15;
mu := .17;
c := 120000;
k := 60000;
sigma := .2;
y := .89;
CI := 500000000;
with(Statistics);

Hi, all, I have a question, how to expand a multivariate polynomial, like this: F := [1-(x[1]-1)^2]*[1-(x[3]-1)^2]+[1-(x[1]-1)^2]*[1-(x[2]-2)^2]+(2*[1-(x[1]-1)^2])*[1-(x[2]-2)^2]*[1-(x[3]-1)^2] when I used expand(F); the result is the same as F itself, nothing changed. Whether there is some way to expand the multivariate polynomial into a completely expanded form, like: 2*x*y^2*z^2+2*x*y^2*z+x*y*z^2+x*y*z+x^2*z^2+x^2*z+x*z^2+x*z+x^2*y^2+2*x^2*y+x*y^2+2*x*y thanks.

Hi can someone please help me. I am trying to save a list to a file but the code below saves the list with spaces. So when i open the file they all have spaces after each number(see below). How can i save the list as it is?

Q1)

Hi everybody, Using pdsolove(SyPDE, BIC, numeric), I have to model propagation of two waves , u(x,t) and v(x,t) , in two elastic test rods that are in contact. The problem are boundary conditions at the contact surfaces: values of forces and strain are equal at the first rod right end and at the second rod left end: D[1](u)(l_1,t)=D[1](v)(0,t) and (u)(l_1,t)=(v)(0,t) Maple can't do that. Should I put in code some transitional Maple expression or function for force and strain, like, for force X:=(delta*x)/l, in order to get this: D[1](u)(l_1,t)=X, D[1](v)(l_1,t)=X,

Hi, I want to plot all points (x,y,z) with the properties: z = x*y x = sqrt(9-y^2) How can I do this? Thanks.

u:=Vector([1,1,-1]),v:=Vector([2,0,-5]),w:=Vector([5,1,-11]) (Vectors are by columns)

How can I find a basis for the subspace spanned by {u,v,w}.