Three short tutorial videos which demonstrate basic operation of Octave software, used in this graduate-level introduction to numerical methods for engineers. The videos should also be helpful for beginning MATLAB users.
Cleaning up and saving plots. Configure axis labels. Call another script (plotdefaults.m) within fitting.m. Get Octave help with 'doc' command. Using comments in scripts. Saving plots with the 'print' command.
Plotting the line that results from our fit on the data. Construct a matrix with looping, inverse, transposition functions. Using hold on & hold off. Manual axis configuration. Using semicolon to clean up command line display. Debugging errors.
Create adjacent windows for Octave command line and text editing a script file (fitting.m). Generate data as row & column vectors, adjust paramaters. Generate plots: default line plot, add points, adjust the style of points.