Intro to the imaginary numbers (video)
Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.
Learn about the imaginary unit, "i", a unique number defined as the square root of -1. It's a key part of complex numbers, which are in the form a + bi. The powers of "i" cycle through a set of values.
Complex number - Wikipedia
Is “1+ square root of 5” a real number? - Quora
What is the square of -5? - Quora
Imaginary Numbers, Definition, History & Examples - Lesson
How does one compute the square root of imaginary numbers? - Quora
Complex Fibonacci Numbers Part 1: Real Inputs - Math - Snap! Forums
What is the answer to -5 squared? - Quora
Imaginary Numbers Explained - Adding, Subtracting, Multiplying
Powers of Imaginary Numbers - Expii
What is the value of the square root of —5? - Quora