The Test

Given a collection of fourteen numbers u_i, v_i, i=0,...,6, test whether or not the collection may be realized as the multipliers of a quadratic endomorphism with an invariant line.

In order to run this program, the user has to define rational values for the imput variables and a boolean to specify the format.
There are two options:

• Choose u_i, v_i for i = 0,...,6 then run: sage Test.sage '[u_0,v_0,...,u_6,v_6]' False,

• Choose t_k, d_k for i = 0,...,3 and u_i, v_i for i = 4,5,6 then run sage Test.sage '[t_0,d_0,...,t_3,d_3,u_4,v_4,...,u_6,v_6]' True.

You can also just run sage Test.sage to print the 'usage' message.