Dear Maple users

I read somewhere that plots with units is new in Maple 13. There is however something which is not working well:

> restart:
> T:=30 [[year]]:
> A0:=370000[[Bq]]:
> A(t):=A0*(1/2)^(t/T):
> plot(A(t), t=0..100[[year]])

I expected to see a plot of an exponential with units. A coordinate system was displayed but no function plot!! Can someone explain why? If I remove the units, the exponential appears!

Regards, Erik V. 

Download 16210_convection1.mws
View file details

I am try to write the solution in latex but its too long. Can any one help me to use some maple commads to write the solution in a compressed form.

Thanks

Hello,

 

I've got a big file "file.mw" written in Maple12, which is OK, since I own Maple 12. Unfortunately it is totally in Math mode and all in one single group, i.e. of the form

 

> first line;
   second line;
   third line;
   ....

   last line;
>

 

(keep in mind that there are only two ">" s).

I have maple 13 for Mac OS X version 10.6.2. Initially maple worked fine but suddenly it didn't seem to recognise keyboard shortcuts. Then when saving a worksheet all it did was save a blank one. Later it threw out a couple of two dimensional blue lines when using PDEplot. And recently it won't export any plots. In short maple is even wore than windows (and thats saying something).

Dear Friends,

I have Maple v9.5 on my laptop. I would like to know how to take the inverse cosine and sine transform of a function.

Since I am using Integral Transformation to solve PDEs, it is of great importance to me.

Best,

Maziar

How can I round off the numbers in a random array or matrix?  Round or Trunc will not work on a random number.

with(ArrayTools):
a:=30*(ArrayTools:-RandomArray(8,8));

 

I replied to the following thread but after further thought I probably start a new thread:

http://www.mapleprimes.com/forum/multivariate-directional-derivative-0

hey all

I want to write an algorithm similar to this but instead of ''w1:=a+h''   I have to put about 75 commands. how can i do this?

 

Can someone help me please?

 

What am i doing wrong?

 

> restart;
>
> g := .2189750324;


> m2 := 1;

> a := 1;

> c2 := -1;

> equation2 := y = m2*X+c2; 

> area1 := int(equation2, X = g .. a, numeric);

Error, (in int) invalid arguments

 

Can i make an algorithm like this in maple?

w= 4

for k= 1 to 10 do

             for h = 1 to 20 do

                      for a = 4 to 15 do

                               w1= a+hk

Objective: plot a graph from data drawn from two arrays. I would like to have the data points marked with a symbol (point, circle, or diamond, etc.) on the graph. How do I do that? Following is the code: -- two arrays of data point: engineeringStress and epsilon(engineering strain) -- Zip is used to put two arrays into data points (x,y) to create stressStrainData -- plot is used to graph The plot shows a line; I would like to have the data points marked (visibly seen) on the graph. Thanks. --mdc > restart; > with(plots); with(plottools);

Consider the following situation.  A thread acquires a mutex, then enters a critical section.  However when executing in the critical section, the thread access a memory location.  If that memory location is not in cache, the thread will wait for a few hundred cycles.  If accessing the memory location causes a page fault (the memory was swapped out to disk), the thread may need to wait a few million cycles.  However while this thread is waiting, it is still holding the mutex.  This means that other threads will not be able to enter the critical section, and may

Hallo,

I would like to create a literal subscript using a mac and international keyboard.

Unfortunately the symbol on the expression palette does not work so I need to use a keyboard shortcut. I have been searching the internet and maple help for hours, but I cannot find it. What I did find is:

http://www.maplesoft.com/support/help/AddOns/view.aspx?path=worksheet/documenting/2DMathShortcutKeys

A MaplePrimes member recently asked me how to sort two sets, using the permutation of one to sort the other.  For example, given the list

L1 := [3+I, I, 2, -1, 5, 4]:

sort it according to its magnitude and then permute the second list

L2 := [a, b, c, d, e, f]:

in the same manner.