@techreport{s-doran-03,
TITLE = {The Diamond Operator for Real Algebraic Numbers},
AUTHOR = {Schmitt, Susanne},
LANGUAGE = {eng},
NUMBER = {ECG-TR-243107-01},
INSTITUTION = {Effective Computational Geometry for Curves and Surfaces},
ADDRESS = {Sophia Antipolis, FRANCE},
YEAR = {2003},
DATE = {2003},
ABSTRACT = {Real algebraic numbers are real roots of polynomials with integral coefficients. They can be represented as expressions whose leaves are integers and whose internal nodes are additions, subtractions, multiplications, divisions, k-th root operations for integral k, or taking roots of polynomials whose coefficients are given by the value of subexpressions. This last operator is called the diamond operator. I explain the implementation of the diamond operator in a LEDA extension package.},
}