Working with Matrices

[Q-Source]

Hello old friends,

Is anyone there who is familiar with matrices?. I am trying to calculate the determinant of a (nxn) matrix where n is higher than 12!
I could do it by hand, but it would take ages to get it...right.

Could any mathematician there, refer me to a website with a software to calculate determinats?. It must be free and available to poor students.

Thanks

P.D. I found math.com but it is not working.

 

[RussDill]

Hello old friends,

Is anyone there who is familiar with matrices?. I am trying to calculate the determinant of a (nxn) matrix where n is higher than 12!
I could do it by hand, but it would take ages to get it...right.

Could any mathematician there, refer me to a website with a software to calculate determinats?. It must be free and available to poor students.

Thanks

P.D. I found math.com but it is not working.

I would recommend octave:

http://www.octave.org/

http://octave.sourceforge.net/Octave_Windows.htm

 

[Stimpson J. Cat]

Anther thing to check, particularly if you are interested not only in having software to do it, but being able to see the code and understand how it works, is Numerical Recipes.

http://www.nr.com

The source code for the C version is available online. Note that it is copywrited, though.


Dr. Stupid

 

[Jorghnassen]

There's tons of free software that can do this. As a statistics student I'd just use R but it's not meant just to be used for basic matrix computations, though it could come in handy if you're taking some sort of probability/statistics course...

 

[boooeee]

If you've got access to Microsoft Office, Excel can handle it pretty easily up to something like 60x60. It gets a little squirrely after that.

 

[Q-Source]

I would recommend octave:

http://www.octave.org/

http://octave.sourceforge.net/Octave_Windows.htm

I tried to install octave but was unsuccessful.

I do not know anything about programming and cannot spend time on learning how to do it. That is not my intention.

Basically, I cannot install any software in the only computer I have access to. For that reason, I would really be grateful if anyone knows a website where you just write the matrix and estimate the determinant without many complications.

I am not working with numbers but with coefficients (mixed numbers and unknown coefficients), so I am not sure if this could be a problem.

Thanks all for your help.

Belem

 

[Jorghnassen]

I tried to install octave but was unsuccessful.

I do not know anything about programming and cannot spend time on learning how to do it. That is not my intention.

Basically, I cannot install any software in the only computer I have access to. For that reason, I would really be grateful if anyone knows a website where you just write the matrix and estimate the determinant without many complications.

I am not working with numbers but with coefficients (mixed numbers and unknown coefficients), so I am not sure if this could be a problem.

Thanks all for your help.

Belem

Have you tried this then?

 

[Q-Source]

Have you tried this then?

That is exactly what I was looking for. Thanks a lot.