D.12.4.4 norm
Procedure from library
hyperel.lib
(see
hyperel_lib
).
Usage:
norm(a,b,h,f);
Return:
norm of a(x)-b(x)y in IF[C]
Note:
The norm is a polynomial in just one variable.
Curve C: y^2+h(x)y=f(x) is defined over basering.
Example:
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