HYBRID STORAGE AND INTERPOLATING DEVICES FOR A DIGITAL COMPUTER,

Abstract

Special analog-digital devices for storing and interpolating functions in a digital computer are considered. Nodes in an (n plus 1)-dimensional space can have either an orderly or an arbitrary arrangement. As function values are specified at the nodes, the generalized Lagrange interpolation polynomial is used; it ensures smaller equipment and higher speed than the Newton interpolation formula. Three schemes are briefly considered: (1) digital storage, analog interpolation; (2) analog storage, digital interpolation; (3) digital storage, hybrid interpolation. Comparison shows that the first scheme is the simplest; error largely determined by its analog part is 1-0.1 percent; the third scheme has the highest accuracy; complexity of its digital part sharply increases with the number of independent variables. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 03, 1970
Accession Number
AD0710256

Entities

People

  • S. A. Ginzburg
  • Yu. A. Lyubarskii

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Automatic
  • Computers
  • Computing Devices
  • Cybernetics
  • Digital Computers
  • Errors
  • Interpolation
  • Mathematics
  • Polynomials

Readers

  • Applied Combinatorial Optimization and Logic Circuit Design.
  • Approximation Theory.
  • Integrated Circuit Design and Technology.

Technology Areas

  • Space