 | 1 | initial version |
In Sage 9.4, in the following code:
P.<x> = QQ[]
pol = 2*x^2 + 4*x + 6
print( gcd(pol) )
print( gcd(pol.change_ring(ZZ)) )
The first gcd works fine, while the second gcd results in
TypeError: object of type 'sage.rings.polynomial.polynomial_integer_dense_flint.Polynomial_integer_dense_flint' has no len()
There is a workaround by using gcd(pol.coefficients()), but I wonder if above error is a bug.
In Sage 9.4, in the following code:
P.<x> = QQ[]
pol = 2*x^2 + 4*x + 6
print( gcd(pol) )
print( gcd(pol.change_ring(ZZ)) )
The first gcd works fine, while the second gcd results in
TypeError: object of type 'sage.rings.polynomial.polynomial_integer_dense_flint.Polynomial_integer_dense_flint' has no len()
There is a workaround by using gcd(pol.coefficients()), but I wonder if above error is a bug.
PS. This gcd is essentially what is called the content of a polynomial. Surprisingly, .content() is defined for multivariate polynomials but not for univariate ones.
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