I found a bug in the Norm function. Somehow it comes up with an error when executing a noncontent variabel.

Like:

  Student:-LinearAlgebra:-Norm(a)

        Error, (in Student:-LinearAlgebra:-Norm) when calling 'LinearAlgebra:-Norm'. Received: 'expects its 1st argument, MV, to be of type {Matrix,Vector}, but received a'

 

Anyone know if this is going to be solved or anything to prevent it?

 

In Maple's Help system there is an icon to switch the Examples from 1D Maple notation input to and from 2D Math input (the default).

Why is the 2D Math form of the Help Examples in red? That doesn't match the any of Maple's interfaces' entry modes, does it? Shouldn't the input be in black, to match what appears to be 2D Math input in Worksheet mode?

Also, the 2D Math form of the Help Examples loses inlined explanatory comments. For example, on the modp1 help there is this, in 1D Maple notation...

My name is Darin Ohashi and I am a senior kernel developer at Maplesoft. For the last few years I have been focused on developing tools to enable parallel programming in Maple. My background is in Mathematics and Computer Science, with a focus on algorithm and data structure design and analysis. Much of my experience with parallel programming has been acquired while working at Maplesoft, and it has been a very interesting ride.

In Maple 13 we added the Task Programming Model, a high level parallel programming system. With the addition of this feature, and a few significant kernel optimizations, useful parallel programs can now be written in Maple. Although there are still limitations and lots more work to be done on our side, adventurous users may want to try writing parallel code for themselves.

To encourage those users, and to help make information about parallel programming more available, I have decided to write a series of blog posts here at Maple Primes. My hope is that I can help explain parallel programming in general terms, with a focus on the tools available in Maple 13. Along the way I may post links to sites, articles and blogs that discuss parallel programming issues, as well as related topics, such as GPU programming (CUDA, OpenCL, etc).

My next post, the first real one, I am going to explain why parallel programming has suddenly become such an important topic.

The NullSpace help page in online help uses {{...}} for sets instead of {...}. I didn't check other pages with help examples containing sets.

Just looked at the RowSpace (and ColumnSpace) online help pages. They contain [[...]] instead of [...].

It seems the cascade, tile etc... under the windows option only work when extra tabs from the same maple.exe are opened in a new window.  If multiple maple.exe files are started separately the cascade, tile etc... windows options are unavailable.  Not really a problem, it makes sense.  Third party programs are probably available that would force multiple windows into tile or cascaded format.

I have  suggestion for people who make maplesim. In this version in MapleSim
2.0 it's not posible to enter piecewise function in Signal
Blocks-Sources-Real-Real Expression component. It will be wonderfull If you
make this avalible.

Hi,

My equation is,

H*sin(x)=(A/2)*sin(2*x) - (B/4)*sin(4*x)

where  H=800  and  x = 0..pi/2

How can I solve A and B parameters by maple?

Thank you in advance

Bengu

Some changes are coming to MaplePrimes!

The following is strange. By acting on an equation label (in the Standard GUI) a subsequent global reference gets printed as if it were a module reference.

> restart:

> x:=ScientificConstants:-Constant(c);
                              x := Constant(c)

> ScientificConstants:-GetValue(x);
                                  299792458

> y:=:-Constant(hbar);
                             y := Constant(hbar)

> ScientificConstants:-GetValue(y...

Not all objects can be saved to .m and retrieved sucessfully in a restarted or new session. This is the case not only for "escaped" locals, but also for some objects implemented as function calls of a module member.

> restart:

> t := ScientificConstants:-Constant('c'):

> type(t, specfunc(anything,ScientificConstants:-Constant));
                                     true
 
> ScientificConstants:-GetValue(t...

Is there a way to disable the evaluation of an expression in a working page. For example:

x=1

y=2

z=x+y

I'd like to have y=2 not evaluated. Instead of deleting that line, is there a way that I can indicate to Maple to skip line 2? Many thanks.

Chin Li

Is the "math" typesetting in the forum working? Example Sum((-1)^n/n,n=1..infinity)

It’s been nearly ten years since I first walked onto the University of Waterloo campus as a freshly minted undergraduate, bright-eyed and bushy-tailed and eager to learn all about electrical engineering. I guess it’s hard to believe the speed with which time passes. It’s actually a bit astonishing how much I can still remember about orientation, or “frosh” week, like 4 a.m. fire drills, a very messy obstacle course, sitting with 800 other young engineering students in a lecture hall, and above all, meeting new friends.

I used to really enjoy reading mapleprimes and answer questions.  It was fun.  There were challenging questions, and some rather interesting design discussions.

And then I got bored.  I am not totally sure exactly why.  In some ways, I think the density of challenging questions went down.  Well, that's perhaps not quite right either -- the density of new (challenging) questions went down.

AUTHOR: Fereydoon Shekofte v := ImportMatrix("F:\\xyz.txt", source = delimited, delimiter = " ", format = rectangular, datatype = float[4], transpose = false, skiplines = 0) c := ImportMatrix("F:\\face.txt", source = delimited, delimiter = " ", format = rectangular, datatype = integer[4], transpose = false, skiplines = 0) MatrixOptions(mi("format"), 'order = C_order'); mi("format") f := Array(ArrayTools[Reshape](c[1 .. 3864], 1288, 3), order = C_order) plots[pointplot3d](v) p := Array([seq(geom3d[point](p || i, v[i, 1], v[i, 2], v[i, 3]), i = 1 .. 1063)])