Revision history [back]
 | 1 | initial version |
If a lives in a polynomial ring rather than in the symbolic ring,
then a[k] extracts the coefficient of x^4 of a, regardless
of the degree of a.
Example:
sage: x = polygen(ZZ)
sage: a = 2 + 3*x
sage: [a[k] for k in range(4)]
[2, 3, 0, 0]
| | 2 | No.2 Revision |
If a lives in a polynomial ring rather than in the symbolic ring,
then a[k] extracts the coefficient of x^4x^ka, regardless
of the degree of a.
Example:
sage: x = polygen(ZZ)
sage: a = 2 + 3*x
sage: [a[k] for k in range(4)]
[2, 3, 0, 0]
