
Accession Number : AD0673674
Title : EPSILONCALCULUS.
Descriptive Note : Technical rept.,
Corporate Author : STANFORD UNIV CALIF DEPT OF COMPUTER SCIENCE
Personal Author(s) : Richman,Paul L.
Report Date : 16 AUG 1968
Pagination or Media Count : 147
Abstract : Recursive function theory is used to lay the basis for a partially constructive theory of calculus, which we call the epsiloncalculus. This theory differs from other theories that have grown out of recursive function theory in that (1) it is directly related to the variableprecision computations used in scientific computation today, and (2) it deals explicitly with intermediate results rather than ideal answers. As epsilon approaches zero, intermediate results in the epsiloncalculus approach their corresponding answers in the calculus. Thus we say 'the epsiloncalculus approaches the calculus, as epsilon approaches zero.' It is hoped that investigations in the epsiloncalculus will lead to a better understanding of numerical analysis. Several new results in this direction are presented, concerning instability and also machine numbers. Discrete notions of limit, convergence, continuity, arithmetic, derivative and integral are also presented and analyzed. (Author)
Descriptors : (*MATHEMATICAL LOGIC, *NUMERICAL ANALYSIS), RECURSIVE FUNCTIONS, COMPUTER PROGRAMMING, APPROXIMATION(MATHEMATICS), FUNCTIONAL ANALYSIS, SET THEORY, THESES
Subject Categories : Theoretical Mathematics
Computer Programming and Software
Distribution Statement : APPROVED FOR PUBLIC RELEASE