MATHEMATICAL DOUBLE-STRUCK CAPITAL F is one of the 1024 characters in the Mathematical Alphanumeric Symbols Unicode subset.
The image below shows how the MATHEMATICAL DOUBLE-STRUCK CAPITAL F symbol looks like in some of the most complete UTF-8 fonts: Code2000, Sun-ExtA, WenQuanYi Zen Hei and GNU Unifont. If the font in which this web site is displayed does not contain the MATHEMATICAL DOUBLE-STRUCK CAPITAL F symbol, you can use the image below to get an idea of what it should look like.
Please share your opinion about this UTF-8 symbol. If you have any useful insight information you would like to share (such as historical, emotional, literal meaning, or any other use cases) please leave a comment below and let us know. We would honestly appreciate it.