Determinant of Large Matrix

[Bjoern Schliessmann]

James Stroud wrote:

> For this matrix, I'm getting this with numpy:
> 
> 2774532095.9999971
> 
> But I have a feeling I'm exceeding the capacity of floats here.
> Does anyone have an idea for how to treat this?

Not if you don't state your requirements more precisely. E. g. what
precision do you need?

> Is it absurd to think I could get a determinant of this matrix? 

Absolutely not.

> Is there a python package that could help me?

Help doing what?

BTW, scilab says this:

-->det(A)
 ans  =
 
    2.7745320960000E+09  
 
-->ans-2774532095.9999971
 ans  =
 
    2.8610229492188E-06  
 
-->

The error is 15 magnitudes below your result -- what do you want
more? :)

Regards,


Björn

P.S.:
>>> print 2774532095.9999971
2774532096.0
>>> 

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