Re: Re: Re: Questions regarding MatrixExp, and its usage
- To: mathgroup at smc.vnet.net
- Subject: [mg63580] Re: [mg63390] Re: [mg63355] Re: [mg63335] Questions regarding MatrixExp, and its usage
- From: "Michael Chang" <michael_chang86 at hotmail.com>
- Date: Fri, 6 Jan 2006 05:24:23 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
Hi,
<Snip>
>(By the way, I think your e-mail program should be able to render the
>"funny symbol" correctly if it interprets the encoding of the message as
>Unicode.)
Thanks ... I haven't been able to figure out how to coax hotmail to change
the encoding, but Outlook @ work seems to be able to decode things properly!
:)
>I think your mistake is that although A is a Jordan block 8 A is not.
Oh boy ... Duh! <Blush> You're right ... my mistake! Sorry.
>So the right thing to do is this:
>
>
>A = {{0, 1, 0}, {0, 0, 1}, {0, 0, 0}};
>
>In[4]:=
>{S, B} = JordanDecomposition[8*A];
>
>
>f[x_] := Exp[x]
>
>
>S . p[f, 0, 3] . MatrixPower[S, -1]
>
>
>{{1, 8, 32}, {0, 1, 8}, {0, 0, 1}}
>
>This seems to be right.
Yes, this *is* correct! My apologies for my confusion, and many thanks
again!
Regards,
Michael