I’ve been experimenting with plotting phasor diagrams in GNU Octave. This approach may also work in MATLAB, but I haven’t tried that yet. I need to tidy this up a little more to make it convenient to reuse, but I’m capturing it as it is for the time being, so that I don’t lose it.
This is my M-file, “example.m”:
% % GNU Octave phasor plot example % Written by Ted Burke - 19-2-2014 % % Create a few complex values z1 = 3 + 3j; z2 = 2 + 4j; z3 = z1 * z2; % Calculate a suitable axis limit based on phasors m = 1.2 * max([real([z1 z2 z3]) imag([z1 z2 z3])]); % Create a new figure window figure hold on % Plot phasors one at a time quiver(0,0,real(z1),imag(z1)) quiver(0,0,real(z2),imag(z2)) quiver(0,0,real(z3),imag(z3)) % Add horizontal and vertical axes plot([-m m],[0 0]) plot([0 0],[-m m]) % Set axis limits and aspect ratio axis([-m,m,-m,m], 'square')
To install octave in Linux (debian), just run the following command as root:
apt-get install octave
Then, to run the example: