Mathematics has numerous cats. For instance, there’s:

• Catalan numbers, which appear all over the place in counting situations.
• The Catalan constant
• Category theory
• The Catenary curve
• The Catenoid surface
• A Catalan surface
• Catastrophe theory

But here’s a Cat that will never appear in the Encyclopedia of Mathematics:

• The totally pissed Cat:

 Yeah, I’m looking at YOU!

Followed by,

• The Now I’m Safe Cat:

 I hope this isn’t going to be a regular occurrence …