Mathematical Alphanumerical capital I symbol - Mathematics Meta Stack Exchange
Glossary of mathematical symbols | EODC Public Wiki
MathType - Wikipedia
Obelus - Wikipedia
Math Symbols Guide
What are the different types of mathematical symbols? How can we classify them into different categories based on their usage or meaning (e.g., like how we classify animals)? - Quora
What is the symbol for quotient in mathematics? - Quora
How to Make Math Symbols on Your Mac (OS X): 10 Steps