In this video playlist, you will learn how to simplify complex numbers under a radical as well as raised to a higher power.

In this video tutorial I show you how to divide complex numbers. Since complex numbers have an imaginary part which we cannot ...

Now, on to the subject of complex numbers. We have stayed away from this subject until now simply because we did not want to confuse things. Initially, it is easy to think of signals as “real valued.” ...

In spite of their name, “imaginary” numbers are as real as any other numbers, especially when it comes to hunting for lost treasure. For our first Insights puzzle of 2019, let’s go on a treasure hunt.

All numbers are imaginary (even "zero" was contentious once). Introducing the square root(s) of minus one is convenient because (i) all n-degree polynomials with real coefficients then have n roots, ...