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 | 1 | initial version |
I'm not sure why this does not work over the symbolic ring, but it does so over the rational field of polynomials in h and k:
R.<h,k> = PolynomialRing(QQ,2)
A = matrix([[1,-3,0,2],[-2,4,0,h],[0,-2,1,k],[3,-1,7,1]])
A.echelon_form()
gives
[ 1 0 0 -3/2*h - 4]
[ 0 1 0 -1/2*h - 2]
[ 0 0 1 -h + k - 4]
[ 0 0 0 11*h - 7*k + 39]
| | 2 | No.2 Revision |
I'm not sure why this does not work over the symbolic ring, but it does so over the rational field of polynomials in h and k:
R.<h,k> = PolynomialRing(QQ,2)
A = matrix([[1,-3,0,2],[-2,4,0,h],[0,-2,1,k],[3,-1,7,1]])
A.echelon_form()
gives
[ 1 0 0 -3/2*h - 4]
[ 0 1 0 -1/2*h - 2]
[ 0 0 1 -h + k - 4]
[ 0 0 0 11*h - 7*k + 39]
ADDED. Explanation for why this does not work over SR is given in this answer.
