The Prime Number Spiral (a.k.a. the Ulam Spiral) is formed by marking the prime numbers in a spiral arrangement of the natural numbers. This is software is for exploring the Prime Number Spiral.
Prime sprial plotting software for square (Ulam) and related polygon prime number spirals. Allows multiple prime generating quadratic equations to be displayed simultaneously. Plot data and image files can be saved to disk for further analysis. Demo version is limited to prime spirals based on the square and up to two prime generating quadratic equations.
Factorizer may be used: (1) to get the prime decomposition of all numbers in a range of numbers (2) to get all factors of a single number or all factors of all numbers in a range (3) to find only the prime numbers in a range of numbers (4) to find pairs of prime numbers (e.g. 107 and 109) in a certain range (5) to count (without displaying) the prime numbers in a range of numbers (6) to find Fermat and Mersenne primes < 2,147,483,647
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PDF Prime can help you merge, split, lock, and unlock your PDF files with ease! PDF Prime was designed from the beginning as a fast, friendly, and easy software tool that helps you do your job quicker so you can go on to better things. Try the no risk, 30-day FREE trial. Merge (combine) many PDF files into one. Split PDF files into seprate pages. Lock PDF files with a password for security. Unlock previously-locked PDF files.
The calculation is intended for the purposes of geometric and strength designs of spiral cylindrical torsion springs made of wires and rods in circular sections, loaded with a static or cyclic loading. Application is developed in MS Excel, is multi-language and supports Imperial and Metric units. Is based on ANSI, ISO and DIN standards and support many 2D and 3D CAD systems.
SurfTris is a Tetris clone with a new twist. Instead of 2D plane, playing field is spread upon a 3D surface. There are five different surfaces to choose from: three closed surfaces - Cylinder, Cone, and Hyperboloid and two twisted planes - C-Spiral and O-Spiral. Game features: - Unique challenges of Twisted and Diversity Modes - Ability to use MP3 and MIDI files of gamer’s choice as game soundtrack - High Score tracking for every surface.
CFB Primes is an optimised PalmOS program which can find the prime factors and closest primes of any integer number up to one billion (US) in a few seconds or less. The standard edit menu allows you to make use of the results in other applications. CFB Primes is available free of charge.
http://www.namefromnumber.com The reverse search cellular phone number lookup from Name From Number.com will let you enter a cellular phone number to identify the owner's name and address. You can also reverse search unlisted and private phone numbers to find the name and address or who the phone number is registered to.
