It's like geometry hates me this month.
I'm trying to find the intersection of two tubes (cones or cylinders) and a plane... up until today I had been trying to do it as intersect(intersect(tube 1, tube 2), plane)... today I realized I could instead do it as intersect(intersect(tube 1, plane), intersect(tube 2, plane))... express each tube-plane intersection as some quadratic with two variables, i.e. Ax
2 + By
2 + Cx + Dy + Exy + F = 0.
Well, I was able to do that, but when I tried to solve for the intersection of two of those... quadrics again. I ****ing hate quadrics
