I just posted and then clicked 'logout' (upper right on the page).

After going back I recognize I am still logged in. Strange. Does
the page not clear the data (= cookies?) for that demand?

restart;
a:= 2.75:  b:= 7.:  N:= 2^4:
X:= t-> add(sin(b^k*t)/a^k, k= 0..N):
Y:= t-> add(cos(b^k*t)/a^k, k= 0..N):
plot(
   [X, Y, 0..2*Pi], numpoints= 2^12
  ,scaling= constrained
  ,axes= none
  ,color= cyan
  ,caption= cat("Happy New Year ", StringTools:-FormatTime("%Y"))

In ?ChiSquareIndependenceTest a contingency table is needed for input.
To construct such a table from raw data is not trivial. I suggest to include this in the statistics package.
A first try:

Crosstab := proc(A,i,j,first::evaln,second::evaln)
  

J:=Int((3*v^2+4*v+2)*(-(3*v^2+2*v+1)/(3*v^2+8*v+4))^(1/2)/(1+2*v)^2,
      v = -2 .. -2/3) 

Then J = -8/3*EllipticK(1/3) + 8/3*EllipticPi(-1/3,1/3) + 3*EllipticE(1/3)


That integral caught my attention through a private discussion. Both MMA and Maple
only succeded up to a limit in the lower boundary, which could not be determined.

Re-writing the integrand as A/(polynomial of degree 4) using the command 'rationalize'

Reposting an old piece of code, but with two corrections.

yuletide.mw

Maple has  combinat [composition] (n, m)  command, which returns all possible lists of positive integers of  m  terms, the sum of which in each list is n. But there is no similar command for multiplication.

Wrote recently procedure  Factoring, which solves this problem. Formal arguments:  n> 1 - an integer, m - an optional parameter...

This example was reported to me after a Calculus II student encountered this ridiculous result:

f := (k+5)/sqrt(k^7+k^2):
Int( f, k=1..infinity ):
% = value( % );
             /infinity                              
            |              k + 5                    
            |          -------------- dk = -infinity
            |                   (1/2)               
           /1          / 7    2\                    
                       \k  + k /                    

Maple 16 introduces the ?ModuleIterator method, which can be assigned in a module so that it can be used  in a for-loop, or in the seq, add, and mul procedures.

ModuleIterator should return two procedures.  The first (referred to as hasNext) is a predicate that returns true if the iterator is not finished.  The second (referred to as ...

I would like to be able to look at the maple video tutorials with the MaplePlayer on the Ipad. Hope that this is made possible.

Dear friends,

I will present a series of commands for you to ponder that should speak for themselves.

> q := n -> int(1/(1-2^n*exp(I*theta*n))^2*2*I*exp(I*theta), theta=0..2*Pi);
                            2 Pi
                           /
                          |          2 I exp(theta I)
               q := n ->  |      ------------------------ dtheta
                          |            n                2
                         /       (1 - 2  exp(theta n I...

Hello all,

I recently helped someone with a contour integration problem, you may find my calculation at the following link. It occurred to me to test this integral with Maple and Mathematica.

For example,

int(1/x^(1/3)/(x^2+2*x*cos(Pi/7)+1), x=0..infinity);

produces an unusable output from Mathematica. Maple is a little better,...

The application center has undergone some changes.  I usually like to see if things are working properly.

There are currently problems with searching maplesim models.  Doing an advanced search under maplesim5 does not bring up all maplesim 5 models, such as

- Flow dynamics in liquid connected tanks
- Double glazed windows

The next issue is with regards to phantom applications that are there but not linked.  For example:  Advanced...

This tutorial shows how to setup a dual-language project such as Maple/Java or Maple/C in Maple IDE. In the end of the article you can find some links for further reading.

Maple Connectivity

The integration of Maple projects with other Eclipse projects is designed for seamless development and building of your C, Fortran, or Java code for Maple using External Calling package.

Maple Project can be mixed with