To a nonmathematician, having the letter “i” represent a number that does not quite exist and is “imaginary” can be hard to wrap your head around. If you open your mind to this way of thinking, ...

The square root of a negative number could easily be regarded as a curious mathematical construction that has little bearing on real life. Indeed, the French polymath René Descartes gave such numbers ...

Let us look at some interesting facts about squares and square roots. A square and its square root are the reverse of each other. But what happens to squares and square roots of negative numbers? When ...