[sage-support] Re: Extracting parts of a symbolic expression

2010-07-09 Thread David Sanders
On Jul 9, 6:14 am, Jason Grout wrote: > On 7/8/10 11:38 AM, David Sanders wrote: > > > > > Hi, > > > I am trying to extract part of a symbolic expression. > > The expression -- an eigenvalue of a matrix -- has the form > > > A + B*sqrt(C) > > > where A, B and C are themselves complicated symboli

[sage-support] Re: Extracting parts of a symbolic expression

2010-07-09 Thread David Sanders
On Jul 9, 5:16 am, kcrisman wrote: > On Jul 8, 2:38 pm, David Sanders wrote: > > > > > Hi, > > > I am trying to extract part of a symbolic expression. > > The expression -- an eigenvalue of a matrix -- has the form > > > A + B*sqrt(C) > > > where A, B and C are themselves complicated symbolic e

[sage-support] Re: Extracting parts of a symbolic expression

2010-07-08 Thread Jason Grout
On 7/8/10 11:38 AM, David Sanders wrote: Hi, I am trying to extract part of a symbolic expression. The expression -- an eigenvalue of a matrix -- has the form A + B*sqrt(C) where A, B and C are themselves complicated symbolic expressions. I wish to extract the subexpression C from this to tes

[sage-support] Re: Extracting parts of a symbolic expression

2010-07-08 Thread kcrisman
On Jul 8, 2:38 pm, David Sanders wrote: > Hi, > > I am trying to extract part of a symbolic expression. > The expression -- an eigenvalue of a matrix -- has the form > > A + B*sqrt(C) > > where A, B and C are themselves complicated symbolic expressions. > > I wish to extract the subexpression C