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)),

hola

I need define a same equation with different parametric settings

gracias

Hi

I want to find the optimum of

G*(.7500000000*B*sqrt((1.-2.*a+a^2)*B^2/(a^2+B^2-2.*B^2*a+B^2*a^2))-.7500000000*B*sqrt((1.-2.*a+a^2)*B^2/(a^2+B^2-2.*B^2*a+B^2*a^2))*a+.7500000000*a*sqrt(a^2/(a^2+B^2-2.*B^2*a+B^2*a^2)))

+

(1-G)*(-6.250000000*10^(-12)*sqrt(a^2/(a^2+B^2-2.*B^2*a+B^2*a^2))*(5.833333333*10^9*B*sqrt((1.-2.*a+a^2)*B^2/(a^2+B^2-2.*B^2*a+B^2*a^2))-7.500000000*10^9)*(4.*a-3.*B*sqrt((1.-2.*a+a^2)*B^2/(a^2+B^2-2.*B^2*a+B^2*a^2))+3.*B*sqrt((1.-2.*a+a^2...

In a previous post, I promised to write about testing the quality of pseudo-random number sequences.  I'll post later about some of the statistical tests often used, but I first wanted to mention a sort of practical test one can do. One of the many things you might want to do with pseudorandomly generated numbers is Monte Carlo integration/simulatation/etc.  As mentioned by acer in this comment, Monte Carlo integration can be shown to work better with some of the pseudorandom number generators (PRNGs) which are considered inferior in a statistical sense.  In this post, we will play with a simple Monte Carlo approximation of π.

I am performing reliability analysis.  I have two types of data:

1.  Suspended data (data that has not failed)

2.  Failed data

I require to calcaulte how many ways the data can fail for example:

1. F1   Time = 10

2. S1  Time = 100

3. F2  Time = 200

4. S2  Time = 250

The number of combinations for this data is 3:

F1, S1, F2, S2

F1, F2, S1, S2

F1, F2, S2, S1

There are two pieces of extended functionality that I quite often want from the Maple Compiler. The first (task A) is to be able to link in and use an arbitrary function from some other external ("3rd party") shared library, within my Compile'd Maple procedure. The second (task B) is to directly call the compiled Maple procedure from within some computational routine in a 3rd party shared library (which I would then access using define_external). This post is about the first of those, task A.

Hello all,

I'm working through an optimization problem, and I'm running into a problem adding constraints on the variables I am trying to optimize. I'll attempt to ask the question in a general sense, but if it's not clear, I'll be more specific.

I have a procedure called EIG that calculates the sum of the squared residuals of a model compared to experimental data by inputting 6 variables. I'm trying to minimize this function by using the Optimization...

If you work with Maple on a daily basis sometimes you come across
things that seem impossible to do. Yesterday I tried to have two colors
in a histogram ie -3..-1 = red and -1..3 =blue but I could not figure
out how to do it...hummm.....any suggestions?

restart:
with(Statistics):
with(plots):

n:=5000:
A:=Sample(RandomVariable(Normal(0,1)),n):

Histogram(A,bincount=100, color=blue);

help_for_maple_quest.docplease give a explain how to work for operations.