Isaac

Isaac is a character in Numberstairs. His value is

$$sqrt(-1)$$ . He is voiced by Numberblocks459. Now we can make the equation epi x i, which equals -1. Edward is

$$e$$ . Pie is $$pi$$. Which means negatives are coming soon! Yay!

Facts
He is the first actual imaginary number. The rest share the same value with Infinio.

An imaginary number is not actually imaginary, it was just once thought to be an unnecessary kind of number, until people found out imaginary numbers are important. But the name "imaginary" has stuck.

His cousin is Infinio.

He has a brother named Jisaac, an engineer.