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Re: Re: ConditionNumber

  • To: mathgroup at smc.vnet.net
  • Subject: [mg89555] Re: [mg89532] Re: ConditionNumber
  • From: "Szabolcs HorvÃt" <szhorvat at gmail.com>
  • Date: Thu, 12 Jun 2008 06:30:20 -0400 (EDT)
  • References: <200806120657.CAA08823@smc.vnet.net>

On Thu, Jun 12, 2008 at 09:57, Dana DeLouis <dana.del at gmail.com> wrote:
>> if you try: Norm->2 you get the message ...
>
>
>
> Hi.  I have Ver 6, and not 6.0.2
>
>
>
> m = RandomInteger[{-9, 9}, {20, 20}] // N;
>
>
>
> If I do MatrixConditionNumber[m, Norm->2], it returns unevaluated.
> However,
>
>
>
> MatrixConditionNumber[m, 2]
>
> 65.3896
>

This is because you used MatrixConditionNumber from the old
LinearAlgebra`MatrixManipulation package, and not the built-in
LinearAlgebra`MatrixConditionNumber that Daniel mentioned.


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