Algorithm 173: assign
Otomar Hájek · Communications of the ACM · 1963
The procedures below make use of Algorithm 61, Procedures for Range Arithmetic [Comm.ACM 4 (1961)].It is assumed that the procedures below and the range arithmetic procedures are contained in an outer block and, therefore, that the procedures are available as required.Together the procedures make possible an attempt to determine absolute bounds * These procedures were developed under Office of Naval Research Contract Nonr-225(37) at Stanford University.