- Imaginary number - Wikipedia, the free encyclopedia
An imaginary number is a number whose square is less than or equal to zero. For example, \sqrt{-25} is an imaginary number and its square is −25. An imaginary number can be written as a real number multiplied by the imaginary unit i, which ...
http://en.wikipedia.org/wiki/Imaginary_number
- Imaginary Numbers
An Imaginary Number, when squared, gives a negative result. ... but imagine that there is such a number (call it i for imaginary) that could do this: i × i = -1 ... And that is also how the name "Real Numbers" came about (real is not imaginary).
http://www.mathsisfun.com/numbers/imaginary-numbers.html
- Imaginary Numbers, How to simplify imaginary numbers, formula ...
Imaginary numbers. Formula & calculator to simplfiy the imaginary number i to any exponent or power.
http://www.mathwarehouse.com/algebra/complex-number/imaginary-number-lesson.php
- Math Forum: Ask Dr. Math FAQ: Imaginary Numbers
Contrary to what some people might tell you, imaginary numbers are not numbers that only exist in the brains of weird people. Or maybe they are; all numbers in math are "imaginary" in the sense that you can't touch them or experience them ...
http://mathforum.org/dr.math/faq/faq.imag.num.html
- A Visual, Intuitive Guide to Imaginary Numbers | BetterExplained
21 Dec 2007 ... Wrong. So-called “imaginary numbers” are as normal as every other number (or just as fake): they're a tool to describe the world. In the same spirit of assuming -1, .3, and 0 “exist”, let's assume some number i exists where: ...
http://betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numb..
- Complex Numbers: Introduction
Anyway, this new number was called "i", standing for "imaginary", because " everybody knew" that i wasn't "real". (That's why you couldn't take the square root of a negative number before: you only had "real" numbers; that is, numbers without ...
http://www.purplemath.com/modules/complex.htm
- What is an Imaginary Number?
5 Apr 2012 ... An imaginary number is a number whose square is a negative real number. Imaginary numbers play an indispensable role in physics...
http://www.wisegeek.com/what-is-an-imaginary-number.htm
- The Imaginary Number i | Algebra: Complex Numbers | College ...
What is the imaginary number i, and how is it used? This tutorial will teach you all about it.
http://www.college-cram.com/study/algebra/complex-numbers/the-imaginary-number..
- Complex or imaginary numbers - A complete course in algebra
Square root of a negative number. The real and imaginary components of a complex number. The complex conjugate.
http://www.themathpage.com/alg/complex-numbers.htm
- Imaginary and Complex Numbers
Eventually, you are going to encounter a situation where you will have to deal with square roots of negative numbers. How can this be done ? After all, a positive number squared or a negative number squared will always equal a positive ...
http://www.1728.org/compnum2.htm
