Re: [Numpy-discussion] matlab ss2tf in python/symbols in linear algebra/transfer functions

2008-10-10 Thread Gael Varoquaux 
On Fri, Oct 10, 2008 at 04:02:21AM -0700, Scott Askey wrote:
  Subject: matlab ss2tf in python/symbol in linear algebra/transfer functions
  To: numpy-discussion@scipy.org
  Date: Thursday, October 9, 2008, 5:36 PM
  Is there a clever way to do symbolic linear algebra with
  python? What is the prober tool for doing linear algebra
  with matrices containing symbols? 

Have a look at sympy: http://code.google.com/p/sympy/

Gaël
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Re: [Numpy-discussion] matlab ss2tf in python/symbols in linear algebra/transfer functions

2008-10-10 Thread Dag Sverre Seljebotn 
Gael Varoquaux wrote:
 On Fri, Oct 10, 2008 at 04:02:21AM -0700, Scott Askey wrote:
   
 Subject: matlab ss2tf in python/symbol in linear algebra/transfer functions
 To: numpy-discussion@scipy.org
 Date: Thursday, October 9, 2008, 5:36 PM
 Is there a clever way to do symbolic linear algebra with
 python? What is the prober tool for doing linear algebra
 with matrices containing symbols? 
   

 Have a look at sympy: http://code.google.com/p/sympy/
   
Also, depending on usecase, perhaps Sage: www.sagemath.org

If the symbols happen to be restricted to polynomials over the same 
variables, for instance, then I think Sage likely has highly optimized 
algorithms for dealing with those (though I didn't try it).

Dag Sverre
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[Numpy-discussion] matlab ss2tf in python/symbols in linear algebra/transfer functions

2008-10-10 Thread Scott Askey 



 Subject: matlab ss2tf in python/symbol in linear algebra/transfer functions
 To: numpy-discussion@scipy.org
 Date: Thursday, October 9, 2008, 5:36 PM
 Is there a clever way to do symbolic linear algebra with
 python? What is the prober tool for doing linear algebra
 with matrices containing symbols? 
 
 
 V/R
 
 Scott


  
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