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Há 5 dias · Having proved that the points of a square are equal in number the points on an edge of that square, Cantor wrote to his friend Richard Dedekind: “I see it but I don’t believe it!”
Há 4 dias · Complex number. A complex number can be visually represented as a pair of numbers (a, b) forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the "imaginary unit", that satisfies i2 = −1. In mathematics, a complex number is an element of a number system ...
Há 2 dias · In 1871 Richard Dedekind called a set of real or complex numbers which is closed under the four arithmetic operations a field. In 1873 Maxwell presented A Treatise on Electricity and Magnetism. In 1878, William Kingdon Clifford published his Elements of Dynamic. Clifford developed split-biquaternions, which he called algebraic motors.
Há 1 dia · Biography. Youth and education. House of birth in Brunswick (destroyed in World War II) Gauss's home as student in Göttingen. Johann Carl Friedrich Gauss was born on 30 April 1777 in Brunswick (Braunschweig) in the Duchy of Brunswick-Wolfenbüttel (now part of Germany's federal state Lower Saxony ), to a family of lower social status. [4] .
TIL Richard Dedekind, who worked with Georg Cantor on infinite sets, was an exceptional mathematician but he never went beyond being a high school teacher in his hometown. Cantor wanted to enter University of Berlin but was prevented from doing so as his new branch of mathematics was rejected
Há 4 dias · Real number, in mathematics, a quantity that can be expressed as an infinite decimal expansion. The real numbers include the positive and negative integers and the fractions made from those integers (or rational numbers) and also the irrational numbers.
Há 4 dias · Introduced by Richard Dedekind in 1897 the nth Dedekind number represents the size of the free distributive lattice with n generators, the number of antichains of subsets of an n-element set, and the number of abstract simplicial complexes with n elements.
