Karamcheti, V., Li, C., Pechtchanski, I., Yap, C.,
"A core library for robust numeric and geometric computation",
Proceedings of the 15th annual Symposium on Computational Geometry, Miami Beach, Florida, ACM SIGGACT, June 1999, pp. 351-359.
351 ;;Quote: CORE geometric library offers guaranteed accuracy; up to 150 times slower than machine accuracy