What are some real life ways Imaginary number are used?

Question

By imaginay Numbers I meant "i" not like zillions.

Answer 1

wtf

Answer 2

If numbers are infinate then all " imaginary" numbers are sooner or later real.

Answer 3

I agree with Markh above.  The main usage that I've seen is in circuits and electricity.  There are also cool things called fractals that were created by generating imaginary numbers.  It's also related to chaos theory which was popularized by "Jurassic Park".

Good luck to you !

Answer 4

In Electrical Engineering you deal with Alternating Current(AC)

The Phase angle of the current is expressed in imaginary numbers. a capacitor makes negative imaginary numbers and an inductor makes positive imaginary numbers.and a good engineer tries to make the circuit so that in the end the imaginary numbers cancel each other out.

Also power companies is the Phase angle(repented as imaginary numbers) to determine how much power people are using.

Answer 5

For most human tasks, real numbers (or even rational numbers) offer an adequate description of data. Fractions such as ⅔ and ⅛ are meaningless to a person counting stones, but essential to a person comparing the sizes of different collections of stones. Negative numbers such as −3 and −5 are meaningless when weighing the mass of an object, but essential when keeping track of monetary debits and credits[1]. Similarly, imaginary numbers have essential concrete applications in a variety of sciences and related areas such as signal processing, control theory, electromagnetism, quantum mechanics, cartography, and many others.

In electrical engineering, for example, the voltage produced by a battery is characterized by one real number (called amplitude), such as +12 volts or −12 volts. But the "AC" voltage in a home requires two parameters. One is an amplitude, such as 120 volts, and the other is an angle (called phase). The voltage is said to have two dimensions. A 2-dimensional quantity can be represented mathematically as either a vector or as a complex number (known in the engineering context as phasor). In the vector representation, the rectangular coordinates are typically referred to simply as X and Y. But in the complex number representation, the same components are referred to as real and imaginary. When the complex number is purely imaginary, such as a real part of 0 and an imaginary part of 120, it means the voltage has an amplitude of 120 volts and a phase of 90°, which is physically very real.

Some programming languages have built-in support for imaginary numbers. For example, in the Python interpreter, one may use them by appending a lowercase or uppercase J to the number[2]:

Answer 6

the number i is used in the heisenberg uncertainty principle, its used in calculating data about streams of particles, if you know its location you cant know its momentum, if you know its momentum you cant know its location

Answer 7

when people have a lot of something they say they have zillions of them.