en.wikipedia.org/wiki/Number

For example, in Western society the number 13 is regarded as unlucky, and "a ...
Today, number systems are considered important special examples of much
more .... If the real and imaginary part...

motls.blogspot.com/2010/08/why-complex-numbers-are-fundamental-in.html

Aug 31, 2010 ... Complex numbers are fundamental for all predictions in modern science. .... A
way to see why such things are useful is to imagine that the ..... scientific
association and journal in 1837 by the Duke of Clarence, Ernest Augustus ...

press.princeton.edu/titles/9259.html

Description of the book An Imaginary Tale: The Story of √-1 by Nahin, P.J., ... for
Best Professional/Scholarly Book in Mathematics, Association of American
Publishers ... Today complex numbers have such widespread practical use--from
electrical ... On such occasions, it would be most useful to have a copy of Paul
Nahin's ...

galileospendulum.org/2012/06/09/imaginary-numbers-are-real/

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.

www.commsp.ee.ic.ac.uk/~mandic/complexbook/files/c01.pdf

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
Theorem of ...

www.maths.ed.ac.uk/~jcollins/OpenStudies/MISW1.ppt

What different sorts of numbers caused problems for our ancestors? ... Early
societies did not have many number words. .... Surprisingly, imaginary numbers
became important in the race to solve the cubic, not in the solution of quadratics.

www.storyofmathematics.com/18th_euler.html

Today, Euler is considered one of the greatest mathematicians of all time. ... the
deep relationships between trigonometry, exponentials and complex numbers. ...
of graph theory and presaged the important mathematical idea of topology.

www.storyofmathematics.com/19th_gauss.html

Gauss gave the first clear exposition of complex numbers and of the ... books
ever written, and which laid the foundations for modern number theory. Among ...

plus.maths.org/content/101-uses-quadratic-equation-part-ii

Truly, quadratic equations lie at the heart of modern communications. ... A very
important application is to find the stopping distance of a car travelling at a given
..... Using a combination of real and imaginary numbers, known as complex ...

community.lessonplanet.com/t/real-world-applications-to-imaginary-and-complex-numbers/976

Jul 20, 2012 ... Authenticate imaginary numbers through real-life applications in science, math, ...
with complex numbers in association with electrical engineering. ... so let's put
out a chair for him today; and, even if he's died in the meantime, ...