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EllipticCurves :: toWeierstrass

toWeierstrass -- A method to transform a smooth plane cubic into Weierstrass form.

Synopsis

Description

The method use the a modified version Nagell's algorithm which works in any characteristic.

Reference: Tibouchi, M. ''A Nagell Algorithm in Any Characteristic'', Cryptography and Security: From Theory to Applications, 474--479, 2012.

i1 : toWeierstrass({-1,0,+1,0,0,+1,0,-1,0,+2},{1,2,1},ZZ/13)
The point is not on the curve

Ways to use toWeierstrass :

For the programmer

The object toWeierstrass is a method function.