jburkardt

STRING_SIMULATION\ Vibrating String Simulation {#string_simulation-vibrating-string-simulation align=”center”} ===========================

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STRING_SIMULATION is a C++ program which simulates the behavior of a vibrating string by solving the corresponding initial boundary value problem (IBVP), creating files that can be displayed by gnuplot.

Licensing: {#licensing align=”center”}

The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.

Languages: {#languages align=”center”}

STRING_SIMULATION is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs: {#related-data-and-programs align=”center”}

FD1D_WAVE, a C++ program which applies the finite difference method to solve a version of the wave equation in one spatial dimension.

GNUPLOT, C++ programs which illustrate how a program can write data and command files so that gnuplot can create plots of the program results.

HIGH_CARD_SIMULATION, a C++ program which simulates a situation in which you see the cards in a deck one by one, and must select the one you think is the highest and stop; the program uses GNUPLOT for graphics.

Reference: {#reference align=”center”}

1. George Lindfield, John Penny,\ Numerical Methods Using MATLAB,\ Second Edition,\ Prentice Hall, 1999,\ ISBN: 0-13-012641-1,\ LC: QA297.P45.

Source Code: {#source-code align=”center”}

• string_simulation.cpp, the source code.

Examples and Tests: {#examples-and-tests align=”center”}

• string_simulation_output.txt, the output file.
• string_data.txt, a data file containing the solution values.
• string_commands.txt, GNUPLOT commands that can create an image from the solution data file.
• string.png, an image of the solution as it changes over time.

List of Routines: {#list-of-routines align=”center”}

• MAIN is the main program for STRING_SIMULATION.
• F supplies the initial condition.
• G supplies the initial time derivative.
• TIMESTAMP prints the current YMDHMS date as a time stamp.

You can go up one level to the C++ source codes.

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Last revised on 01 December 2012.