The Prime Number Spiral (a.k.a. the Ulam Spiral) is constructed as follows: Consider a rectangular grid. We start with the central point and arrange the positive integers in a spiral fashion (anticlockwise). The prime numbers are then marked. There is a tendency for the prime numbers to occur on diagonal lines, however far out into the spiral one goes. This is software is for exploring the Prime Number Spiral. It also allows coloring of the prime numbers in various ways, displays a random arrangement to compare with the primes and shows how square and triangular numbers are located on the spiral.
Like it? Share with your friends!
Other Windows Software of Developer «Hermetic Systems»:
World Dual Petin-Meton Calendar Date Conversion Software The World Dual Petin-Meton Calendar consists of two calendars: The Lunar Petin-Meton Calendar and the Solar Petin-Gregorian Calendar.The Lunar Petin-Meton Calendar, which was invented in 2001-2002 by Mikhail Petin, is based on the Metonic cycle. Months are
Julian-Gregorian-Dee Date Calculator Windows software to convert between Julian, Gregorian, Dee and Dee-Cecil calendar dates in various formats, and to add and subtract a number of days, weeks, months and years to or from a given date. Also displays a sequence of Gregorian and Dee (or Dee-Ce
Index Files Search Words This software is for indexing and searching HTML files, XML files, text files or files of a similar kind (such as XML files) in the root folder or any subfolder of a hard disk, CD-ROM.
This program does not simply create a list of files or simply searc
Hermetic Word Frequency Counter This software scans an MS Word docx file or a text file (including HTML and XML files) with text encoded via ANSI or UTF-8 and counts the frequencies of different words. The words which are found and displayed can be ordered alphabetically or by frequency.
Heliocentric Planetary Aspects and Transits A Windows program to calculate heliocentric aspects between planets at a given date. Also displays personal heliocentric transits for a given birthdate, and synastry for two birthdates. Has graphical and dynamical displays which show how heliocentric tran
Equinoxes, Solstices and Cross-Quarter Days Software to calculate accurate dates and times for equinoxes, solstices and the Celtic cross-quarter days. The cross-quarter days are those midway between the equinoxes and solstices. For example, Imbolc is midway between the northern winter solstice and
Stego PNG Stego PNG is a simple steganography program which allows you to encrypt and hide a file in a PNG or BMP image file, with the use of a stego/encryption key, so that the presence of the hidden file is undetectable, even by forensic software using statistica
Five Cellular Automata A cellular automaton consists of:
(a) A structure of cells, such as the squares on a chess board.
(b) A set of values or "states" such that each cell is associated with a particular state.
(c) A set of rules describing how one state of the system (a p
Cryptosystem ME6 Cryptosystem ME6 is a Windows program which uses a symmetric key encryption system to encrypt information in either a single file or in multiple files (at once) so that it cannot be read by those not knowing the key. Data is encrypted using a key which is
Easy Date Converter Designed for easy performance of date calculations. Adds or subtracts a number of days or months to a date, calculates the number of days between two dates and converts among Gregorian dates, Julian dates, ISO 8601 Week dates, Hermetic Leap Week dates, Ju
Python Fraction Calculator (32 bit) Python Fraction Calculator is a Windows application to solve fraction numbers. It is a command prompt program. Enter nominator and denominator of 2 fractions with addition or subtraction option. It calculates the fractional equation and displays the result
Little Hoppers Math Tac Toe Little Hopper's Math Tac Toe helps students practice their addition, subtraction, and multiplication skills in a fun and friendly environment. Play against the computer or play head to head with a friend, parent, or tutor. Three math modes and two skill le
Math Studio Math tool for high school math, middle school math teaching and studying. Function graphing and analyzing: 2D, 2.5D function graphs and animations, extrema, root, tangent, limit,derivative, integral, inverse; sequence of number: arithmetic progression, geo
Trigonometry Challenge Trigonometry Challenge is designed to help students learn to do calculations related to right triangles and sine waves. Solutions to oblique triangles using the Law of Sines and the Law of Cosines are includes. This program is also useful to teach trigonom
FRS Talking Calculator An easy to use calculator for use in elementary classrooms with several features that make it ideal for use in situations where assisting software technologies are desirable. Big buttons are easy targets for students with limited motor skills. Large type o
Arbitrary Precision Maths Library The Arbitrary Precision Maths Library is an Excel spreadsheet that supports mathematical calculations with up to 1,000 digits accuracy.
Without this spreadsheet Excel is limited to 15 digits accuracy.
Available for free.
Vector Algebra by WAGmob for Windows 8 WAGmob brings you Simple 'n Easy, on-the-go learning app for Vector Algebra. The app helps you understand the basics in a nice and organized manner. App tools include search, bookmark, and facebook integration. It has Tutorials on Introduction to Vectors,
DTCalc With DTCalc is a Windows application to perform simple calculations on date and time. For calculation valid date and time is required. Range follows between 1601 through 30827 and time use the 24 hour clock convention.
ZGrapher This graphing calculator can plot y(x), x(y), polar, parametric and table-defined functions. All your graphs and coordinate space may be fully customized. You can comment your graphs using labels and legend. For a few seconds you can obtain derivatives, ta
Unit Converter Expert Unit Converter Expert is pre-configured with over 2000 units in more than 78 categories, which range from those that are common, such as, length, volume, numbers, velocity, mass, and pressure, to more specialized categories like magnetic flux density, elec
Supported Operating Systems:
Windows 10 |
Windows 2000 |
Windows 2003 |
Windows 7 |
Windows 8 |
Windows 98 |
Windows Me |
Windows NT |
Windows Vista |
Windows XP |
Comments on Prime Number Spiral:
Comments not found
Windows Software - Free Windows Downloads, Apps, Games, Freeware, Skype, Media Player, Antivirus, Gimp, Live, Starter for Windows XP, Vista, 7, 8, 10