Imaginary number - Wikipedia, the free encyclopedia
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An imaginary number , in mathematics, is a number in the form bi where b is a real number and i is the square root of minus one, known as the imaginary unit. Imaginary numbers and real numbers...
en.wikipedia.org/wiki/Imaginary_number
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Imaginary unit - Wikipedia, the free encyclopedia
'The powers of i repeat in a cycle: ' In mathematics, physics, and engineering, the imaginary unit is denoted by i or the Latin j or the Greek iota (see alternative notations below). It allow...
en.wikipedia.org/wiki/Imaginary_unit
The Greeks were aware of the problem of square roots of negative numbers, but dismissed them as ridiculous and unworthy of discussion. Cardano (1501-1576) called them "fictitious". Bombelli (1526-1572) ran into them in his studies of cubic equations, but didn't know what to make of them.
www.newton.dep.anl.gov/askasci/math99/math99232.htm
Re: Who invented 'imaginary numbers'? Date: Sun Jun 7 16:54:23 1998; Posted By: David Winsemius, MadSci Admin; Area of science: Other; ID: 897168940.Ot ... Imaginary numbers are part of what are now called complex numbers. Their "existence" arose as people searched for solutions to quadratic and higher order...
www.madsci.org/posts/archives/aug98/897257078.Ot.r.html
However, the numbers i and -i were called "imaginary" (an unfortunate choice of terminology which has remained to this day), because their existence was still not clearly understood. ... This is a question that has been bugging my A2T class - who first used i for imaginary numbers?
www.math.toronto.edu/mathnet/questionCorner/complexorig... www.math.toronto.edu/mathnet/questionCorner/complexorigin.html
The collection of numbers created by taking square roots of the negative numbers are sometimes called the pure imaginary numbers. In symbols, we might write a generic pure imaginary number as , the product of a nonzero real number b with the imaginary number i.
staff.jccc.edu/swilson/complex/imagnumbers.htm staff.jccc.edu/swilson/complex/imagnumbers.htm
The first numbers were created to answer the question, "how many?" These are the counting or natural numbers. The smallest numbers of this infinitely large set are 1, 2, 3, 4, 5 and 6. Counting numbers also name the sum or product ... The first imaginary number is called "i." All other imaginary numbers are multiples of it.
www.mathnstuff.com/math/spoken/here/3essay/eimage.htm
The Math Forum's Internet Math Library is a comprehensive catalog of Web sites and Web pages relating to the study of mathematics. This page contains sites relating to Imaginary/Complex Numbers. ... Imaginary Numbers - Math Forum, Ask Dr. Math FAQ; What is an imaginary number? What is i? more>>
mathforum.org/library/topics/complex_numbers/ mathforum.org/library/topics/complex_numbers/
Well, our solutions were not imaginary, but imaginary numbers were encountered during the attempted solution, and during the checking of our work. Does that matter? Well yes, in a way. On the left side of our equation we have sqr(x-1), which just may be an imaginary number.
www.jimloy.com/algebra/imaginar.htm
Imaginary numbers always confused me. Like understanding e, most explanations fell into one of two categories: ... Enter Imaginary Numbers ... Imaginary numbers have a similar story. We can solve equations like this all day long:
betterexplained.com/articles/a-visual-intuitive-guide-t... betterexplained.com/articles/a-visual-intuitive-guide-to-imaginary-numbers/
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