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Number - Wikipedia


A number is a mathematical object used to count, measure, and label. The original examples ... For example, in Western society the number 13 is regarded as unlucky, and "a ... Today, number sys...

soft question - "Where" exactly are complex numbers used "in the ...


Jan 24, 2013 ... So what practical applications of complex numbers exist and what ... of the complex analysis is used for something meaningful in the real world.

Math Forum - Ask Dr. Math Archives: Imaginary Numbers in Real Life


Imaginary Numbers in Real Life, a selection of answers from the Dr. Math ... of Imaginary Numbers: Where are imaginary numbers used today in real life, as in ...

Imaginary Numbers are Real | Galileo's Pendulum


Jun 9, 2012 ... Imaginary and complex numbers are handicapped by the name we gave them. ... made up, perhaps not useful; "complex" similarly seems to argue the numbers are too hard to use. ... In fact, today is the birthday of mathematician Caspar Wessel who characterized the complex plane. .... Science and Society.

Full Value of Pi Weighed by UAlbany Mathematician - University at ...


... appearance in many other areas of mathematics, such as complex numbers ( obtained by introducing the square root ... Q: How is Pi relevant to society today?

101 uses of a quadratic equation: Part II | plus.maths.org


May 1, 2004 ... Differential equations are at the heart of nearly all modern ... and this is the approach generally used for the very complex differential equations .... Using a combination of real and imaginary numbers, known as complex ...

Complete list of applications of trigonometry in today's society ...


Complete list of applications of trigonometry in today's society ... one is compelled by the mystic combination of numbers and symbols that fit together in ... By using a complex series of integral proofs, the Laureate disposed of each item one ...

Why do we need the real numbers?


A dialogue concerning the need for the real number system. ... rationals, reals, complex numbers) the biggest jump in sophistication is that between Q ... S. I was looking at a maths book today and saw a whole lot of complicated stuff ..... own are a bit restrictive because there are plenty of useful numbers such as root two, ...

It's Still Not Repeated Addition


What worried me were some blog entries and a number of emails I received ... the more basic, earlier method, that people used for hundreds of years, and then ... as repeated addition (though I suspect not), but in today's world, that is definitely not ... is no way they can lead informed lives and contribute adequately to society.

modern algebra | mathematics | Britannica.com


Sep 6, 2012 ... In itself a set is not very useful, being little more than a well-defined collection of .... (An algebraic integer is a complex number satisfying an algebraic .... to the features of society and culture that decisively distinguish humans.

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Question Corner -- Complex Numbers in Real Life


After teaching complex numbers, my students have asked me the obvious question: Where is this math used in real life! Your assistance would be greatly ...

Electricity and Complex Numbers - Regents Exam Prep Center


Surprise! Complex numbers are not just a "math oddity" that only we crazy mathematicians enjoy. Since complex numbers provide a system for finding the roots ...

The Magic of Complex Numbers - Communications and signal ...


The notion of complex number is intimately related to the Fundamental Theorem of Algebra ... The human idea of 'number' has evolved together with human society. ... N) are straightforward to accept, and they have been used for counting in many ... mathematicians were working on what is today known as the Fundamental ...