GRAFTEK - GRAFFIT Curve Fitting Program TEKtronix Version.

Abstract

GRAFTEK is an interactive graphics program that fits by least squares, a curve to N data points. This code combines two CDC 274 graphics curve fitting programs (GRAFFIT, LSQ) for use on the TEKtronix 4014 storage tube using Tektronix software (TCS). The program fits the curve and determines the constants for any of nine empirical equations or a polynomial of up to 11th degree, and displays the fitted curve (up to three at one time) against a background of the data points. Options include reading in new data, rescale of axes, deleting all displayed curves, deleting points, adding new points, restoring all original or selected deleted points, specifying constants, and calling for CALCOMP plotter or quick look hard copy of output. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1976
Accession Number
ADA031854

Entities

People

  • Wayne D. Lunger

Organizations

  • Picatinny Arsenal

Tags

DTIC Thesaurus Topics

  • Curve Fitting
  • Engineering
  • Equations
  • Graphics
  • Hard Copy
  • Information Systems
  • Interactive Graphics
  • Management Information Systems
  • New Jersey
  • Plastic Explosives
  • Polynomials
  • Security
  • Storage Tubes

Readers

  • Approximation Theory.
  • Computer Science.