Re: [Q] symbolic SVD?
- To: mathgroup at smc.vnet.net
- Subject: [mg26819] Re: [mg26809] [Q] symbolic SVD?
- From: Jean-Marie THOMAS <jmt at agat.net>
- Date: Thu, 25 Jan 2001 01:13:03 -0500 (EST)
- References: <200101240918.EAA03610@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
The HelpBrowser specifies, for SingularValues, that this function applies
ONLY on numerical matrices.
If you want to get singular values for a symbolic matrix, you will have to
implement your own algorithm, e.g. compute the det of m-lamba identity and
find the roots of the resulting polynomial.
On Wednesday 24 January 2001 10:18, James wrote:
Sorry about reposting.
I've not received any reply yet,
and I tried several ways, but I couldn't get a clue, either.
So if anyone can help, that would be appreciated.
-------------------------------------------------------------
I've used 'symbolic' calculation in mathematica in many ways,
but this time,
I wonder if mathematica can solve symbolic matrix operation.
Specifically,
m = {{a, b},
{c, d},
{e, f}}
SingluarValues[m]
returns
SingularValues::"svdf": "SingularValues has received a matrix
with infinite precision."
(a,b,c,d,e,f are all symbolics.)
I need to do several symbolic matrix operations such as SingularValues.
Is there any way to do that?
Thank you.
- References:
- [Q] symbolic SVD?
- From: research@proton.csl.uiuc.edu (James)
- [Q] symbolic SVD?