Less than

Transcript

The comic shows five mathematical expressions with hearts after them:

• Square-root of n heart, if n < 9

• cos t heart, for all real t

• d/dx heart, if x > 1/3 and d ≠ 0

• determinant of a 2-by-2 identity matrix heart

• F{f} heart for some functions at some points

Title text: Why do I keep comparing things to three? (Alt. title text: Stupid auto-replace; Alt. alt. title text: It appears 3 is quite big.)