rossroessler.tripod.com

History of Complex Numbers (also known as History of Imaginary Numbers or the History of i) For school, I had to do a paper on the History of i (and the history of complex numbers in general). Finding this a tedious task, and scrolling through many useless sights, I wished that there were just one sight that had everything I needed on it.

en.wikipedia.org/wiki/Complex_number

A complex number z can thus be identified with an ordered pair (Re(z), Im(z)) of real numbers, which in turn may be interpreted as coordinates of a point in a two-dimensional space. The most immediate space is the Euclidean plane with suitable coordinates, which is then called complex plane or Argand diagram, named after Jean-Robert Argand.Another prominent space on which the coordinates may ...

www.quora.com/Who-discovered-imaginary-numbers

The first use or effort of using imaginary number [1] dates back to [math]50[/math] AD. Heron of Alexandria [2] , while studying the volume of an impossible pyramid came upon an expression [math]\sqrt{81–114}[/math]. However, he deemed it was impo...

www.answers.com/Q/Who_discovered_complex_numbers_in_mathematics

Some numbers are skipped in the vitamin B complex due to the sequence in which they are constructed and the order in which they were discovered. There are a total of 8 B complex vitamins ranging ...

www.math.uri.edu/~merino/spring06/mth562/ShortHistoryComplexNumbers2006.pdf

complex numbers. Euler used the formula x + iy = r(cosθ + i sinθ), and visualized the roots of zn = 1 as vertices of a regular polygon. He deﬁned the complex exponential, and proved the identity eiθ = cosθ +i sinθ. 12. Caspar Wessel (1745-1818), a Norwegian, was the ﬁrst one to obtain and publish a suitable presentation of complex numbers.

www.cut-the-knot.org/arithmetic/algebra/HistoricalRemarks.shtml

Remarks on the History of Complex Numbers. The study of numbers comes usually in succession. Children start with the counting numbers. Move to the negative integers and fractions. Dig into the decimal fractions and sometimes continue to the real numbers. The complex numbers come last, if at all. Every expansion of the notion of numbers has a valid practical explanation

math.stackexchange.com/questions/534474/discovery-of-complex-numbers

Discovery of complex numbers. Ask Question Asked 6 years, 6 months ago. Active 6 years, 6 months ago. Viewed 979 times 7. 1 $\begingroup$ A popular story about the discovery of the complex numbers goes as follows. ... {-121}}+\sqrt[3]{2-\sqrt{-121}}$. While this is seemingly meaningless it was discovered that if one performs formal ...

www.math-kit.de/en/2003/content/CN-PB-XML-EN/new//Manifest31/history.html

How it all began: A short history of complex numbers. In the history of mathematics Geronimo (or Gerolamo) Cardano (1501-1576) is considered as the creator of complex numbers. In those times, scholars used to demonstrate their abilities in competitions.

en.wikipedia.org/wiki/Number

The complex numbers consist of all numbers of the form + where a and b are real numbers. Because of this, complex numbers correspond to points on the complex plane, a vector space of two real dimensions. In the expression a + bi, the real number a is called the real part and b is called the imaginary part.

www.ukessays.com/essays/engineering/application-and-use-of-complex-numbers...

The rectangular complex number plane is constructed by arranging the real numbers along the horizontal axis, and the imaginary numbers along the vertical axis. Each point in this plane can be assigned to a unique complex number, and each complex number can be assigned to a unique point in the plane. Modulus and Argument of a complex number: –