A Second Order Runge-Kutta Integration Subroutine That Uses a Different Step-Size for Each Variable.

Abstract

The program was written to handle the numerical integration of initial value problems in which the frequency content of the variables differ considerably among themselves. In order to save computer time each variable is integrated with its own step-size so that the derivatives of the slowly changing variables are calculated less frequently than the derivatives of the rapidly changing variables. A second order Runge-Kutta method is used since high accuracy is not required. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1974
Accession Number
AD0779839

Entities

People

  • Harold L. Toothman

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Computer Programs
  • Computers
  • Frequency
  • Mathematical Analysis
  • Mathematics
  • Numerical Analysis
  • Numerical Integration
  • Procedures (Computers)
  • Runge Kutta Method

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mathematics or Statistics