Most problems in computational geometry are algebraic. A general approach to address nonrobustness in such problems is Exact Geometric Computation (EGC). There are now general libraries that support EGC for the general programmer (e.g., Core Library, LEDA Real). But many applications require non-algebraic functions as well. In this paper, we wish to provide non-algebraic functions in the contex...

There are a limited number of artistic objects from ancient times with particular importance in neonatal medicine. The best examples are figurines from ancient Egypt of Isis nursing Horus, showing the importance of breastfeeding. The earliest images of the human fetus were made by the Olmecs in Mexico around 1200- 400 BCE. One of the earliest representations of congenital anomalies is a figurin...

LEDA [MN95, MNU97, MN98] is a collection of implementations of data structures and combinatorial algorithms. In the almost ten years of the project we translated hundreds of algorithms into programs. For the purpose of this paper an algorithm is the description of a problem solving method intended for a human reader and a pwgram is a description intended for machine execution. Clearly, algorith...