Unicode Character from the Arrows (2190-21FF) block. Created by me. It's an SVG image file, so the symbol can blend in with background color and be scalable. Symbol can be displayed by using hex html codes, but still, many web browsers are unable to display all or some of the unicode characters. This pic can help the users of those web browsers to view these symbols. Pls use it properly.
This image of simple geometry is ineligible for copyright and therefore in the public domain, because it consists entirely of information that is common property and contains no original authorship.