摘要：
https://file.scirp.org/Html/1-5301366_80983.htm https://brilliant.org/wiki/cubic-discriminant/ We can compute the discriminant of any power of a polyn 阅读全文
摘要：
https://crypto.stanford.edu/pbc/notes/elliptic/divisor.html Zeroes and Poles Let P=(a,b)P=(a,b) be a point, not of order 2. Consider the rational func 阅读全文