#5113: [with patch, positive review] elliptic curve construction from
weierstrass
equation
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Reporter: robertwb | Owner: was
Type: enhancement | Status: new
Priority: major | Milestone: sage-3.3
Component: number theory | Resolution:
Keywords: |
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Comment (by robertwb):
I tried that first. The problem is f.coefficient(x) returns everything
divisible by one power of x, not the x (alone) term
{{{
sage: R.<x,y> = QQ[]
sage: f = x^2 + x*y + y^2*x
sage: f.coef
f.coefficient f.coefficients
sage: f.coefficient(x)
y^2 + y
sage: f.coefficient(y^2)
x
}}}
It is also harder to exclude bad terms using that method.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5113#comment:2>
Sage <http://sagemath.org/>
Sage - Open Source Mathematical Software: Building the Car Instead of
Reinventing the Wheel
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