cosmicstring

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19 years, 157 days

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These are questions asked by cosmicstring

I am planning to buy a new graphics card to use the CUDA support of Maple. I have some questions:

 

1. I have two choices: A professional graphics card (PNY Quadro 600 1GB GDDR3) or a "normal" (or gamers') card (ASUS ENGTX480/2DI/1536MD5 1536 MB DDR5 384 Bit or MSI N570GTX-M2D12D5 GTX 570 1280 MB GDDR5 320 Bit). Which one would be more efficient for the Maple usage?

 

2. Are there any symbolic procedures that use the GPU in Maple (or...

I have two expression like,

 

exp1:=A1*x*(k-p*x)+A2*x+A3*p+A4

exp2:=A5*x*(k-p*x)

 

where A1, A2, A3, A4 and A5 are some lengthy expressions.

 

I need to find the division of these two, namely exp3

 

exp3:=exp1/exp2

 

in the form

 

exp3:=(A1/A5)+the rest

 

In other words, I need to extract the part which could be normalized by x*(k-p*x).

Dear Maple lovers,

As a classical worksheet user from the past years, now I'd like to be a "modern" Maple user, using the 2D Input in the modern worksheet mode (I will call it mwm from now on). But, alas, I cannot even solve a simple equation!

To describe my situation let me state the following:

1. I use 64 bit Maple 14 Student Edition (single user) under 64 bit Windows 7.

2....

The well known(!) Heun's equation is,

 

df:=diff(y(z),z,z)+(gamma/z+delta/(z-1)+epsilon/(z))*diff(y(z),z)+(alpha*beta*z-q)/(z*(z-1)*(z-a))*y(z) = 0;

 

The solution is the general Heun's functions and it should be written as HeunG according to the help file of Maple 14 but my solution is found in terms of some function called HG which is not listed in the help system.

1. Are they the same?

I've been using Maple for many years in the good-old "classic worksheet" mode. After purchasing Maple 14, I decided to use the "new" worksheet mode (I know it's not that new, but I always objected to use it) to get the most of the 64 bit program with my 64 bit Windows 7...

 

1. My first problem is that "I cannot copy any output!" either to paste to an input line or to a text file!

 

My Tools-Options-Display section is,

Input display: Maple notation

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