The conversation between human and AI assistant.
Why does 0! Equal 1?
Fascinating. Can you tell me more about imaginary numbers?
Of course! Imaginary numbers were first introduced in the 16th century as a way to solve equations that had no real solutions. They involve multiplying a real number by the square root of -1, which is denoted by the letter "i". These numbers have some interesting properties, such as the fact that i raised to the power of 4 equals 1.