vtbud.m~

The Engineering Vibration Toolbox is a set of educational programs written in Octave by Joseph C.

% Updates to Engineering Vibration Toolbox after 1/1/98
% 
%
%   Date       code/s                change
% ---------------------------------------------------------------------
% 11/17/06    vtb3_5          Added: plot Fourier Series
% 10/20/06    all .m          Case in function calls switched to
%                                   lower case
% 10/20/06    vtb1_3          Help corrected to read vtb1_3ex
% 10/20/06    vtb1_3ex        Included. Had been left out
% 06/12/06    vtb4_1          Incorporated Cholesky Decomposition
% 10/30/00    vtb8_1          Fixed no longer available 'i' plot type.
%             vtb8_3          Fixed no longer available 'i' plot type.
%             vtb8            Updated documentation file name. 
% 07/24/00    vtb1_3          Corrected help (vtb9_3 -> vtb1_3) and 
%                                   spelling error
% 05/09/00    vtb7_4          Curve fitting is much more robust,
%                                   much less likely to fail.
% 04/28/00    vtb2_3          Corrected phase plot
% 04/28/00    numerous        Replaced greek names with greek characters
%                                   and made subscripts show up properly
% 04/24/00    vtb2_4          Added plotting options.
% 04/24/00    vtb2_3          Added plotting options.
% 04/21/00    vtb2_3          Added legend & default values
% 04/21/00    vtb2_4          Added default values
% 04/20/00    vtb2_4          Now allows a list of values of zeta
% 03/21/00    vtb1_5          Calls the old vtb2_6. vtb2_6 has been 
%                             grandfathered.
%             vtb1_2          Is the old vtb9_2. vtb9_2 has been
%                             grandfathered.
%             vtb1_3          Is the old vtb9_3. vtb9_3 has been
%                             grandfathered.
%             vtb1_3ex        Is the old vtb9_3ex. vtb9_3ex has been
%                             grandfathered.
%             vtb1_4          Is the old vtb9_4. vtb9_4 has been
%                             grandfathered.
%             vtb4_3          Is the old vtb9_1. vtb9_1 has been 
%                             grandfathered
% 02/29/00    vtb3_3          Can now run with no arguments.
% 02/28/00    vtb2_3          Can now take a list of values for zeta. 
% 02/04/00    vtb7			  Added references to vtb7_4 and vtb7_5
% 01/13/00    numerous        Removed GUI buttons for printing since
%                                  recent version of Matlab enable such 
%                                  GUI capabilities on all platforms.
%                                  Also, removed a number of figure 
%                                  commands. This will allow the user to 
%                                  invoke the hold command and plot 
%                                  multiple graphics on a single figure.
% 01/13/00    readme.txt      Updated version of toolbox to 5 to represent 
%             Contents.m           dropping of support for version 4 of 
%                                  Matlab in future releases.
% 11/08/99    vtb7_4          Improved robustness of curve fitting with
%                                  the addition of a few checks.
%                                  Note: This code does not fit 
%                                  simultaneous FRFs. Thus the results
%                                  for MDOF systems can vary.
% 10/07/99    vtb7_4          Added. Now FRF curve fitting can be 
%                                  performed to ID damping, natural
%                                  frequencies, and even mode shapes.
%                                  There is enough there to perform a 
%                                  complete modal analysis.
% 10/07/99    vtb7_5          Added. Now FRFs of computational models
%                                  can be obtained, viewed, or used in 
%                                  vtb7_4. Includes receptance, 
%                                  mobility, and inertance, along with 
%                                  output of the corresponding frequency 
%                                  vector.
% 11/20/98    readme.txt      Updated to clarify installation 
%                                  instructions
% 11/11/98    vtbud           Modified URL for web page to use shorter
%                                  (~) link.
% 11/11/98    vtb3_3          Modified example to match default
%                                  function (Example 3.3.1, T=1)
% 04/03/98    vtbud           Running vtbud automatically displays
%                                  the most recent vtb updates in
%                                  your web browser
% 04/03/98    vtb,vtoolbox    Added error response when called without 
%                                  help
% 03/30/98    Contents        Added reference to web page
% 03/30/98    Readme          Corrected reference to new web page
% 03/30/98    vtb             Added reference to web page
% 03/17/98    vtb4_2          Incorrect matrix exponential fixed
%
% Run vtbud to compare your version to the most current one.
%
% More information is available at the Engineering Vibration Toolbox
% website: http://www.cs.wright.edu/~vtoolbox
%
% Ignore everything below this line
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help vtbud
web ftp://ftp.cs.wright.edu/pub/vtoolbox/uncompressed/vtbud.m;