Huffman coding can be implemented in Maple similarly to Python.

First, we need a set of character frequencies. It can be created from a string using the following procedure,

Freq:=s->map(x->rhs(x)=lhs(x),
    {StringTools:-CharacterFrequencies(s)});

For example (used in the wikipedia article),

When I upload a file, say Dynamics1.mws, it is stored in the following location:

http://www.mapleprimes.com/files/9249_Dynamics1.mws

However, the link associated with the file name -- on the left-hand side in the Filename column -- is incorrect:

http://www.mapleprimes.com/9249_Dynamics1.mws

Rather silly and surely easy to fix.

Hi,

I wonder how it is possible to copy a text from Maple (version 11) to another application. I can highlight the text in Maple and press ctrl+c. But for example in word the only thing I get by pressing ctrl+v is an image of the text :(

I tried scan the image with an OCR but I assume that the resolution is too bad...there are tons of recognition mistakes..

Please give me advice :)

Martin

Hi folks. I have several applications that require multivariate (usually three variable) polynomials of degree at most n in order to fit data. Is there an easy way to generate these? I have in the past just written them out, but it seems inelegant, and one could easily mistakenly leave out a term when constructing a trivariate poly of degree 7, for instance.

Thanks in advance,

John Starrett

Hi,

I was reading the manual for Maple 13 and playing with some commands.

There is an equation: sin(x)=cos(x) and you can solve it by the solve command.

If you want all solutions, you just put there AllSolutions attribute and you get

(1/4)*Pi+Pi*_Z1~

I wonder why there is a tilde (~) behind "_Z1", because each integer satisfies

the equation (there is no need for an assumption).

Given the initial shape of the longitudinal axis of a curved bar is given by
y₀(x) = a*sin(Pi*x/L)

where a is a constant and L is the length of the bar

and proceeding to calculate the deflections due to deformation from the diff. eq.

EI (dy₁/dx) = -P(y₀+y₁)

the ode for deflections is obtained

dy₁/dx + k*y₁ = -k*a* sin(Pi*x/L)

where k is a constant = sqrt (P/EI)

Can anyone known of or recommend a program fro converting Mathematica notebooks or files etc., into Maple worksheets

Hi, Can anybody explain why Maple is crashing? Does it happen with Maple 13? > c:=alpha->solve(-alpha*(alpha+1)+x^(2/alpha),x); # I am too lazy to solve the eq by hand. > c(a); # Maple returns the correct value although that is difficult to see from the text version of the output /1 / 2 \ \ exp|- ln\a + a/ a| \2 / > c(1.5); # This always crashes Maple 12 on my Mac OS 10.5. Maple announces tha the connection to the kernel has been lost and I must restart. thanks,

If I have autosave on and I'm working on a worksheet and then if I change the name of the directory in the middle of my worksheet.  Autosave re-generates the old file name and saves it there.  Not really a major bug - not many people change the names of their directories in the middle of working on a worksheet anyways.  Never-the-less I managed to stumble across it. 

Try following,

Factor(a^4 + a^2*b^2 + b^4 + a^2*b*c + a*b^2*c + a^2*c^2 + a*b*c^2 + 
    b^2*c^2 + c^4) mod 2;

I couldn't get an answer in a reasonable time and interrupted calculations.

Alec

Hello,

I am maintaining a C++ application that requires Maple code generation features to produce C code.

This application uses the EvalMapleStatement (kv, statement) function, where 'statement' is actually a CodeGeneration[C](...); command.

The application has worked correctly before, and the generated code has been incorporated as modules into other applications that make use of it.

What do you think of the -1^n with no parentheses?

I'm guessing that the following behavior is a mapleprimes feature.

In the forums, when a thread loads, the display always jumps to the bottom of the page to an insertion point waiting in the reply box.

I like to read messages, before I reply.

Is there a way to turn off this "feature" ?

Cheers,

  ~ Mark