Here’s another weird number from mathematics. It’s called “i” (the letter between h and j in the standard alphabet). I wasn’t absolutely sure mathematicians consider it a number, so I asked the Gemini AI “is i considered to be a number in mathematics?” and got this reply:

*Yes, i is considered a number in mathematics.*

*While it might seem unusual at first, “i” is a fundamental concept in mathematics.*

*It’s known as the imaginary unit and is defined as the square root of -1. *

*This might seem counterintuitive, as no real number can be squared to give a negative result. However, the concept of imaginary numbers allows us to solve equations that would be impossible with real numbers alone. *

*Imaginary numbers are crucial in many areas of mathematics, including complex analysis, electrical engineering, and quantum mechanics.*