AoPS Wiki:Article of the Day
Today's featured article is complex number: “The complex numbers arise when we try to solve equations such as . We know (from the trivial inequality) that the square of a real number cannot be negative, so this equation has no solutions in the real numbers. However, it is possible to define a number, , such that . If we add this new number to the reals, we will have solutions to . It turns out that in the system that results... [[[complex number|more]]” |