Hello everyone,
I have a question regarding the implemented Gram-Schmidt procedure. Using a
matrix in the symbolic ring leads to the following error message:
m = matrix(SR, [[x,2*x],[x^2,1]])
m.gram_schmidt()
---------------------------------------------------------------------------
NotImplementedError Traceback (most recent call last)
<ipython-input-21-6b8bbf989823> in <module>()
1 m = matrix(SR, [[x,Integer(2)*x],[x**Integer(2),Integer(1)]])
----> 2 m.gram_schmidt()
/home/michi/GitProjects/sage/local/lib/python3.7/site-packages/sage/matrix/matrix2.pyx
in sage.matrix.matrix2.Matrix.gram_schmidt
(build/cythonized/sage/matrix/matrix2.c:70206)()
9871 Q, R = self.transpose()._gram_schmidt_noscale()
9872 else:
-> 9873 raise NotImplementedError("Gram-Schmidt orthogonalization
not implemented for matrices over inexact rings, except for RDF and CDF")
9874 return Q.transpose(), R.transpose()
9875
NotImplementedError: Gram-Schmidt orthogonalization not implemented for
matrices over inexact rings, except for RDF and CDF
Why isn't it possible to compute an orthonormal basis from vectors with
entries in the symbolic ring? I see no problem in that. What happens behind
the scenes?
Thanks in advance and best wishes
Michael
--
You received this message because you are subscribed to the Google Groups
"sage-devel" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to sage-devel+unsubscr...@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/sage-devel/0573e281-d1fb-4c52-8181-3b61de5a4561%40googlegroups.com.
