RE: Bug in Det[ ], once more
- To: mathgroup at smc.vnet.net
- Subject: [mg15616] RE: [mg15592] Bug in Det[ ], once more
- From: "Ersek, Ted R" <ErsekTR at navair.navy.mil>
- Date: Sat, 30 Jan 1999 04:28:20 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
David Jedelsky wrote:
__________________
In Mathematica 3.0
Det[{{1,1},{1,1}},Modulus->48611]
gives the result 1 instead of 0.
It probably holds for all Modulus equal to other primes grater or equal
to Prime[4793] and for all matrices with some equal rows.
I need this type of computations and I waste a lot of time on this bug.
I cannot find any help in Wolfram documents.
Is there any patch or other possibility to correct this bug? (
Mod[Det[m],p] is really no help )
______________________
I can't provide much help, but you may be interested in the following:
In[52]:=
Together[1+1/x,Modulus->48611]
Together::modm:
Modulus 48611
is too large for this
implementation.
Out[52]=
Together[1+x^(-1),Modulus->48611]
Perhaps Det fails for the same reason Together fails above. At least
Together posted a message, and returned the problem without change.
Ted Ersek