1) Cattle breed 
= April 29 = == Calculating presence of root. == I`m attempting to find if the distance from a point to a cubic curve exceeds a certain threshold, and I`ve gotten it down to a sextic equation in t. I need to determine if there is a root (or roots) between t = 0 and t = 1. I do not need to know the value of this, only that it exists. Is there a f.....