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Hyperelliptic Curves [HB 92]
Removals and Changes:
- The input arguments of the HyperellipticCurve intrinsic
that creates an hyperelliptic
curve have been swapped for general consistency.
If f (x) and h(x) are two univariate polynomials then
HyperellipticCurve(f, h) returns the curve defined by the
equation
y2 + h(x)y = f (x).
(Formerly the syntax was HyperellipticCurve(h, f).)
- Again for consistency, the input polynomials have been swapped in
the intrinsics
IgusaInvariants, JInvariants,
ScaledIgusaInvariants and IgusaClebschInvariants.
A typical call to compute the Igusa J-invariants of the curve
y2 + h(x)y = f (x) would be
IgusaInvariants(f, h).
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