ASKSAGE: Sage Q&A Forum - RSS feedhttps://ask.sagemath.org/questions/Q&A Forum for SageenCopyright Sage, 2010. Some rights reserved under creative commons license.Mon, 02 Jul 2012 11:20:30 +0200Finding Cremona label for Tunnell's y^2-x^3-n^2xhttps://ask.sagemath.org/question/9122/finding-cremona-label-for-tunnells-y2-x3-n2x/When I enter
E = EllipticCurve([-n^2,0]); E;E.label()
Sage gives an error that I have an unsupported operand type. I assume the problem is that I have not defined the variable 'n', which is a square free integer, but how does one do this? Any help would be greatly appreciated!!memory13Mon, 02 Jul 2012 11:20:30 +0200https://ask.sagemath.org/question/9122/