KroneckerProduct is in LinearAlgebra package, and also you could search this site for it.

Various forms of vec are presented in Dave Linder's post above.

For vech, one can use something like <seq(seq(A[i,j], i=1..j),j=1..n)> where n is the number of columns of A (assuming that A is square).

Alec

Yes, EULA doesn't make any warranties - but it is for "unknown" bugs. "Known" bugs is a different law category. I think, a company can be sued for not disclosing them independently of EULA.

Alec

Microsoft, for once - Release notes for latest Visual Studio, or SDKs, for example, contain long lists of bugs, some with workarounds, and others - without. I think, in some countries all public companies are required doing that by law. Maplesoft is not public though.

Beside the law - knowingly selling a defective product (such as a table or a chair with a brocken leg) to somebody without telling him (or her) that it is defective, is highly unethical.

Alec

Even constants are not continuous?!!!

Amazing!!!

They are also not monotonic!

is(1,monotonic);
                                false

Alec

Even constants are not continuous?!!!

Amazing!!!

They are also not monotonic!

is(1,monotonic);
                                false

Alec

Such thing as "my Maple" doesn't exist. I found that limit (and that example) mentally - without Maple. But now, when you asked, I connected remotely to one of servers with Maple, and checked that Maple is also able to find it,

F:=piecewise(x<1,0,1-1/sqrt(x));

                        {    0              x < 1
                        {
                   F := {      1
                        { 1 - ----        otherwise
                        {      1/2
                        {     x

limit(x*(1-F),x=infinity);

                               infinity

That contradicts to your "proposal 2."

Also, Maple has no problems with finding

limit(F,x=-infinity);
                                  0
limit(F,x=infinity);
                                  1
iscont(F,x=-infinity..infinity);
                                 true

Alec

Such thing as "my Maple" doesn't exist. I found that limit (and that example) mentally - without Maple. But now, when you asked, I connected remotely to one of servers with Maple, and checked that Maple is also able to find it,

F:=piecewise(x<1,0,1-1/sqrt(x));

                        {    0              x < 1
                        {
                   F := {      1
                        { 1 - ----        otherwise
                        {      1/2
                        {     x

limit(x*(1-F),x=infinity);

                               infinity

That contradicts to your "proposal 2."

Also, Maple has no problems with finding

limit(F,x=-infinity);
                                  0
limit(F,x=infinity);
                                  1
iscont(F,x=-infinity..infinity);
                                 true

Alec

I didn't mean to say that it is strange that something is not working. It is usual around here. I was surprised that they didn't switch to Maple 12.

With all recent talks about Windows Vista etc. - it is the same as staying with Windows XP.

If the company is not switching to Maple 12 on its own servers - what message does that send to the outside world?

Alec

I didn't mean to say that it is strange that something is not working. It is usual around here. I was surprised that they didn't switch to Maple 12.

With all recent talks about Windows Vista etc. - it is the same as staying with Windows XP.

If the company is not switching to Maple 12 on its own servers - what message does that send to the outside world?

Alec

The option 'continuous' can be used for integration, but I am not sure whether it is related to the property 'continuous', or not.

Just found an interesting phrase in the ?examples,IntegrationMaplet ,

3.  The int option 'continuous' speeds up the integration routine, as it assumes the integrand (and therefore the resulting integral) is continuous.

As we know - it is not "therefore" in Maple. The ?int,details page says:

Note that the indefinite integral in Maple is defined up to a piecewise constant. Hence, the results returned by int may be discontinuous at some points.

Alec

The option 'continuous' can be used for integration, but I am not sure whether it is related to the property 'continuous', or not.

Just found an interesting phrase in the ?examples,IntegrationMaplet ,

3.  The int option 'continuous' speeds up the integration routine, as it assumes the integrand (and therefore the resulting integral) is continuous.

As we know - it is not "therefore" in Maple. The ?int,details page says:

Note that the indefinite integral in Maple is defined up to a piecewise constant. Hence, the results returned by int may be discontinuous at some points.

Alec

Also, some bugs are clearly known when new version is released. It would be helpful if in addition to New features help page there was also a Known bugs help page.

Alec

Topic Search... and Full Text Search... in Help menu seem to be working though.

Alec

I should say that I didn't check the efficiency, but code with goto looks much more clear than with overload. Actually, even if ... elif looks better :)

I wonder why Maple doesn't have a switch? It is a standard recommendation for writing a good (maintainable) code - to use a switch instead of nested ifs.

Alec

I should say that I didn't check the efficiency, but code with goto looks much more clear than with overload. Actually, even if ... elif looks better :)

I wonder why Maple doesn't have a switch? It is a standard recommendation for writing a good (maintainable) code - to use a switch instead of nested ifs.

Alec