A recent question prompted me to wonder whether other Maple users are using the latex output from Maple in their formal written work ? Personally I've found the Maple latex output to be lacking in a number of ways, one of which the writer of this question has found

http://www.mapleprimes.com/posts/96808-How-Do-I-Convert-An-Expression-Like

I myself gave up using latex output...

I've downloaded and installed the Maple 14 but when I open it nothing works.  When I click on anything on the opening page an hour glass appears and no matter how long I wait nothing happens.

Probably a very stupid question.

After hesitating for a very long time I decided as a very satisfied user of MAPLE 12 (Classic worksheet, I'm very conservative) to migrate to MAPLE 14.
However the processing of the files is very slow, autosaving takes for example about 2 minutes while with MAPLE 12 only a few seconds. Saving the file gives an alert: there can be problems in saving due to formatting problems.

I think I have to do some formatting of my MAPLE...

Hi,

In "Maplet Builder", how can i define a  procedure?

(Thank you  for your attention.)

Hi there,

i've wirtten a library for maple12, say "MyLib", which is given by the files "MyLib.ind" and "MyLib.lib".

I've done this via

> restart;  
>  march('create', "<path>/MyLib.lib", 1);
>
> read "functions.txt";
>      
> savelibname:="<path>";
> savelib( `MyLib` );

where "functions.txt" is given as

MyLib:= module()
 

How would I compute the x-coordinate of the symmetry axe of a quadratic function?

How could I write this as a procedure?

Thanks alot in advance.

- Al

How do I convert an expression like 22=K/.9 to latex.

If I right click 22=K/.9 or write latex(22=K/.9) I get  22= 1.111111111\,K - in other words it decided to evaluate 1/.9 before converting it.  To me this 1.11111 is wrong - it's an ugly approximation of 1/.9 - why can't it just leave the equation alone?

So again, is there a way to convert an expression to latex without this evaluation happening? 

(I'm using maple13)

Thanks,

I'm in a calculus course in college right now and my professor wanted us to buy a copy of Maple, so I did.  I bought it for my Mac, but the software seems to be having trouble with basic operations, like adding, subtracting and multiplying.  If I were to try and add 2+3, for example, I can type in "2," but then when I try to type in "+," it deletes the two instead and freezes the Maple program itself.  I have no idea what's going on.  PLEASE HELP!!!

How to solve with numeric pdsolve?

first domain: from 0 to x1 (for example: from 0 to 0.2), thermal diffusivity, a1=1*10^(-6), lambda1=3
second domain: from x1 to x2 (for example: from 0.2 to 0.3), thermal diffusivity, a2=5*10^(-7),lambda2=1
IC:=T(x,0)=298 for both domain,
BC1:=T(0,t)=1200;
BC2:=T(x1+x2,t)=D[1](T)(x1+x2,t)=-10*(T(x1+x2), t)-298)/lambda2),

Regards
wzel

Hi, everyone.

I have got a question. There are n variables q[1],q[2],...q[n]. Each variable can take the value of 1,2, or 3, and I want get all the possible values of sum of these n variables,i.e. sum(q[i]...i=1..n). 
When n=2, I  write the procedure as follows:
    for q[1] from 1 to 3 do
      for q[2] from 1 to  3   do

Hi,

I have this procedure:

f := proc(x) if x < 0 then x^2+1; else cos(x); end if; end proc:

When I calculate NLPSolve(f,-Pi..2*Pi); the result is good. In NLPSolve, f(Pi) or f(-Pi) are also calculated.

When I want to determine f(Pi), I have this error code:

Error, (in f) cannot determine if this expression is true or false: Pi < 0

Why ? 

I must change my procedure with adding "evalf" to get a result for f(Pi):...

Hi all,

I'm having a problem with CodeGeneration[C].

In my simple example that reproduces the problem, there's a procedure containing just a single rtable statement. The contents of the rtable are 6 formulae depending on a single variable, p.

When I stuff the procedure xpr_3 into CodeGeneration[C], strange things will happen. It appears to me that CodeGeneration[C] is omitting anything with the variable p in it. However xpr_3 can be evaluated the usual way.

Suppose I have, say three arrays. I want to perform division on all the same positional elements of the array one and two, and raise the result to a power of designated by the same positional element of the third array.  In other words, the function applies to each of the elements of the array separately.  How do I do that without getting into programming?  Ratch

Hello,

I ran into problems while trying to write the input to NLPSolve in the Matrix Form because the problem dimensions depend on the input data. Take the following example:

max f(x)           <- f a nonlinear function of x

st: x₁+x₂+x₃+x₄                     ≤ b

I've written a procedure which currently outputs, for example, 3/8*2^(1/3)*k^(4/3). However when I plot this it doesn't give me the correct graph that I'm looking for. I've found that rewriting the equation as  3/8*2^(1/3)*(k^2)^2/3 will give me the proper function in Maple, however I don't know how to get my procedure to output the equation in terms of k^2. I'm sure there's a fairly straightforward solution- does anyone know what I'm missing?

Cheers.