Warning, computation interrupted

 

> solve({x11*x11+x12*y11+x13*z11=x11*x11+x12*x21+x13*x31,

x11*x12+x12*y12+x13*z12=x11*x12+x12*x22+x13*x32,

x11*x13+x12*y13+x13*z13=x11*x13+x12*x23+x13*x33,

 

x11*x21+x12*y21+x13*z21=x21*x11+x22*x21+x23*x31,

x11*x22+x12*y22+x13*z22=x21*x12+x22*x22+x23*x32,

x11*x23+x12*y23+x13*z23=x21*x13+x22*x23+x23*x33,

Hi,

I have a matrix with 3 columns and I want to change the order of columns 2 and 3. In fact  column to must be column 3 and vice versa. I was wondering if there is a function that I can use? (the number of rows is variable)

Thanks,

Ibo

I use Optimization package and I obtain a warning

"Warning, no iterations performed as initial point satisfies first-order conditions"

What is the first-order condition?

Thanks,    Sandor

 

Hi,

First of all, I am wondering if this is even possible or even generally used... Maybe what I'm trying to do is not defined or whatever... I dunno.. But I'm gonna ask anyway.


What I want is to make a polar plot, with a different range.

I have a function r(a) which obviously calculates some radial distance as a function of the angle a.

I have so far found 2 ways to plot this in a polar graph:
with(plots):
plot(r(a), a=0..Pi, coords=polar)

hi, if generate 10 random 0 and 1's by using the following maple code > restart: > coin:=rand(0..1): > coin_1:=proc(n) seq(coin(),i=1..n) end: > data1:=coin_1(10); How can I count the number of sequences that have a lenght equal to 1 zero, 2 zero, 3 zero, 1 one, 2 one, 3 one etc etc and how can I plot it in a histogram to illustrate the law of large numbers alex

When I use maple in the shell of Linux, I  always get this kind of output of polynomials:

  2       2        
a  - 2 y  + b y.

My question is could I get them in more regular form,

a ^2 - 2 *y^2  + b* y.

Any idea?

 

Has anyone implemented https for Maple T.A. 3.01? Mainly we are looking to secure the login and password information, but if everything must use ssl, that's ok. Thanks.

-Jeremy Sieminski

Bonjour

Je voudrais savoir s'il était possible de faire fonctionner un maplet sans la visionseuse mapletviewer. Et dans le cas contraire la faire fonctionner à travers un serveur maplenet, Mais je ne sais pas comment m'y prendre. Quel est la démarche à suivre ?


Merci de votre aide.

Hello,

I've problem to make the plot to animate [plot]. Please help. Thanks. Below are the commands

Expand the Dirac delta function in a series of Legendre polynomials using the interval

-1 <= x<= 1.

 

thanks,

v/r,

 

Download 285_Arfken 12.2.5.pdf
View file details

Can anyone help with number 12.2.5?

 

thanks,

very respectfully,

 

 

 

Is there any command or Maple package for computing subresultant sequences of two polynomials? It is hard to believe that Maple doesn't include this basic facility but I can't find it anywhere.

Thanks,

Peter

Why lhs cannot be resolved? Well, it can be, in fact, if the interval is t=0..0.03, say, but I need to use t=0..infinity, or t=0..smthbigenough. Thanks.

fsolve(1-erfc((1/2)*sqrt(2)*sqrt(t)) = 0.5e-1, t, t = 0 .. infinity) = fsolve(1-erfc((1/2)*sqrt(2)*sqrt(t)) = 0.5e-1)

 

It is very stranger that these two statements are not equative:

evalf(Int(x*sin(x)/(1+(cos(x))^4),x=-Pi/2..Pi/2));

 1.845096351

 evalf(int(x*sin(x)/(1+(cos(x))^4),x=-Pi/2..Pi/2));

 1.323830675+0.*I

I think the first one is correct. In fact, the exact result is

 2*hypergeom([1/4, 1/2, 1, 1], [3/4, 5/4, 5/4], -1);

u can evalf the above answer to check it. In fact, Maple cannot get this analytic answer, how do I get it?