File:Z-transform unit circle.svg
Summary
| Description |
English: Unit circle as used for Z-transforms |
| Date | |
| Source | Own work |
| Author | Fcorthay |
Source code
This graphics has been realized with the help of the following Octave script:
pointNb = 100;
axesLength = 1.25;
textOffset = 0.1;
figure(1);
angle = linspace(0, 2*pi, pointNb);
plot(cos(angle), sin(angle));
hold on;
plot([-axesLength, axesLength], [0, 0], 'k');
plot([0, 0], [-axesLength, axesLength], 'k');
plot([1, 0, -1, 0, 1], [textOffset/10, 1, 0, -1, -textOffset/10], 'or');
hold off;
axis("square", "off");
text(1+textOffset, textOffset, "DC");
text(textOffset, 1+textOffset, "fs/4");
text(-1-textOffset, textOffset, "fs/2", "horizontalalignment", "right");
text(textOffset, -1-textOffset, "fs * 3/4");
text(1+textOffset, -textOffset, "fs");
print -dsvg unit_circle.svg
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
