Category : Arithmetic

Zenzizenzizenzic is an obsolete form of mathematical notation representing the eighth power of a number (that is, the zenzizenzizenzic of a number x is the power x8), dating ... -->
Author: 3 years ago
The Riemann hypothesis is a mathematical conjecture. Many people think that finding a proof of the hypothesis is one of the hardest and most important unsolved problems ... -->
Author: 3 years ago
In number theory, a weird number is a natural number that is abundant but not semiperfect. In other words, the sum of the proper divisors (divisors including 1 but not itself) ... -->
Author: 3 years ago
The term gambler's ruin is used for a number of related statistical ideas: The original meaning is that a gambler who raises his bet to ... -->
Author: 3 years ago
In mathematics, the infimum (plural infima) of a subset S of a partially ordered set T is the greatest element of T that is less than or equal to all elements of S. Consequently the ... -->
Author: 3 years ago
In number theory, a full reptend prime or long prime in base b is a prime number p such that the formula (where p does not divide b) gives a cyclic number. Therefore the digital expansion of  in ... -->
Author: 3 years ago
In mathematics, the Perrin numbers are defined by the recurrence relation P(0) = 3, P(1) = 0, P(2) = 2,and P(n) = P(n − 2) + P(n − 3) for n > 2.The sequence ... -->
Author: 4 years ago
In geometry, the spiral of Theodorus (also called square root spiral, Einstein spiral or Pythagorean spiral) is a spiral composed ofcontiguous right triangles. It was first constructed by Theodorus of Cyrene. Construction The spiral ... -->
Author: 4 years ago
Sicherman dice are the only pair of 6-sided dice that are not normal dice, bear only positive integers, and have the same probability distribution for the sum as normal ... -->
Author: 4 years ago