Hi,

I just purchased the personal edition of Maple 14. It was working just fine for 3 or 4 days but now the java interface is distored. Even hovering the mouse over the palettes or images causes distortions. I've uninstalled and reinstalled several times but it hasn't worked.

Has anybody else encountered this? Does anybody have a solution?

Dear all,

 I have a problem in programming with maple if statement:

 restart;Qs:=24; p:=20; m:=3; q:=Qs/(2*p*m); if (q=1) then
> yc:=Qs/(2*p); elif (frem(q,1)~=0) then if (evalf(Qs/(2*p))<1) then
> yc:=1; else yc:=floor(Qs/(2*p)); end if; else yc:=round(0.8*Qs/(2*p)); end if; 

The result is yc:=0; the result must be yc:=1;

 In Matlab:

Hello all,

I'm a new user, hopefully you can assist me as I have work on this problem for quite sometime, I keep getting error of Error, (in dsolve/numeric/bvp/convertsys) unable to convert to an explicit first-order system

I copy my work here. If anyone need the original worksheet I can send this immadiately. Please help and I would like to say Thank you.

R:= 8.31434;             ...

Compare the results of isdifferentiable on 3 piecewise defined expressions f, g, and h.

The first time the order of the asking is f, g, h. The second time (after a restart) the order is h,g,f.

The results are remarkably different! What is going on?

isdifferentiable was first brought to my attention within the last week or so, maybe it is not reliable?

If you remove all the lines with 'assuming' then the inconsistency remains.

restart;

Hi all,

What is the command in Maple which is equivalent to the command "mod" in Matlab ?

Thanks

Hello, does soomeone knows how to calculate:

∫ BesselJ(ε, η x) x^n dx
∫ BesselY(ε, η x) x^n dx

and/or

∫ BesselJ(ε, η x) x exp(-a x) dx
∫ BesselY(ε, η x) x exp(-a x) dx

ε and n are positive integers

a is a positive non-integer

η is a positive non-integer imaginary number

Thanks!!

 Hi

I want to solve this Problem

Symbolic_Matrix.pdf

 in symbolic by maple, but i can`t.

is there any symbolic solution by maple or not,

if there is another solution please help me.

Hi,

When maples calculates Riemenn or Ricci tensor it displays the result in a notation which takes many lines or even pages. Can one replace derivatives with respect to x, y and z as fx, fy, fz instead of what is given by diff(f(x,y,z),x) etc.  and denote partial derivative with respect to t as just a dot. ( I know that maple can use dot to denote total derivative but I want it to denote partial derivative). and Can one write f(t,x,y,z) simply as f. These are...

is it possible to feed maple with the input parameters and the results and get maple to find the governing equation?

I'm working on a school problem and I came across a little problem which I can't figure the solution by hand, so I'm resourcing to maple for this. I have this problem: solve by variation of parameters y"+9y=sinh(2x)

I can do the wronskian and everything fine up to the integration part, which is: integral[(-1/3)sinh(2x)sin(3x),x]

I found the integration step by step of maple
Student[Calculus1][IntTutor]();

but it can't solve this problem, is there...

I recently noticed that the symbol font in my maplets was not appearing correctly when I ran them using Maple 13 or 14 on my Windows 7 laptop. Additional testing showed that while this was pretty standard on Windows 7, it happened on some, but not all, Windows XP systems.

By a stroke of fortune, my local inquiries about this problem suggested that I look at the Clear Type effect that can produce sharper results, particularly on newer LCD displays.

Before going into too many details, let's look at an example. Here's the code for a simple maplet:

restart:
with(Maplets[Elements]):with(Maplets[Tools]):
StartEngine();

alphabet := "abcdefghijklmnopqrstuvwxyz":

TestFont:=Maplet(
  Window[mainWin](title="Font Test", [
    [ "The two lines of text should show the alphabet in the Times font and then\n the Symbol font, but sometimes the Symbol font is not correctly rendered." ],
    [ "Times ",    Label( alphabet, font=Font("Times",18) ) ],
    [ "Symbol",    Label( alphabet, font=Font("Symbol",18) ) ],
    [ Button( "Done", Shutdown() ) ],
    [ "Version: ", Label( convert(interface(version),string) ) ]
  ]
  )
):
Maplets[Display]( TestFont );

Copy these lines to a Maple worksheet (or document) and execute them, or save them to a text file with file extension .maplet, then double click on the file. The maplet should display two copies of the alphabet, the first with Times Roman font, the second with Symbol font. (The version of Maple running the maplet is given at the very bottom of the maplet.)

If you are running Maple 12 or older, I expect you'll see two different versions of the alphabet, like this:

If you are running Maple 14, I expect the line that should be in Symbol font will be in a poor quality Latin font, like this:

I can't predict which outcome you will see if the maplet is run in Maple 13.

What controls this behavior is the "effects" setting for the appearance settings for your display. If you are using the Clear Type effect, you will not see the Symbol font.

This problem is appearing now because up until Windows 7, the ClearType effect was not the default.

Along with the change in the default effect, the way in which users control the effect changed with the introduction of Windows 7.

Prior to Windows 7, access the Properties popup by right-clicking on your desktop. Then select the Appearance tab and click on the Effects button. In the second dropdown menu you can choose either Standard or ClearType. To see the symbol font (in Maple 13 and later), make sure this is set to Standard.

In Windows 7, go to the start menu and search for cttune.exe. Start the ClearType Text Tuner application. In the first popup window, be sure the Turn on ClearType box is unchecked. (For full instructions, including screenshots, please see http://www.sevenforums.com/tutorials/337-cleartype-text-tuner.html .)

When this effect is toggled, the effect changes immediately.

I can't call this a bug, but it is something that I think should be included somewhere in Maple's documentation.

Thanks for listening, I hope this is of use to someone else

Several years ago I was using very nicely the classical worsheet of maple10.0.

Now, I installed Maple 14, but I dont find one environment similar to the nice "classical worksheet" of maple10.

How may I use Maple 14  to have something closer to the classical worksheet of maple 10?

Thanks in advance,

Jean-Jacques

hello there

I have an algorithm which perform set of computation(about 500 in all) fifteen time (for... end do) and ive included commands to pick only the values that i need and place them in an excel file.

Maple is printing all the values computed on screen ( all 7500 values!!)  before the little box shows up for me to input the excel filename.

how do i get maple to not print all these values on screen and simply ask me where to...

I am currently conducting some research using Maple and was wondering if anyone knows whether it is possible to get Maple to identify the non-differentiable points of a function? Also, if I convert a function so that it is piecewise defined how can I extract the separate pieces of the function to work with them individually? Many thanks.

A while back, someone asked me for a good way to plot a Klein Bottle in Maple. I didn't have a good answer at the time, but I recently stumbled upon the following, which does a pretty good job if you don't mind the use of Heaviside in the parameterization.

plot3d(
   [4*(1-1/2*cos(u))*sin(v),
    6*cos(u)*(1+sin(u))+4*(1-1/2*cos(u))*(cos(u)*(1-Heaviside(u-Pi))+Heaviside(u-Pi))*cos(v+Pi*Heaviside(u-Pi)),