Top rated classes: Algorithms

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	All class groups	>	Algorithms	>	Top rated classes (53)

Top rated classes: Algorithms

Numerical and statistical algorithms.

	1. Tic-Tac-Toe

December 2010
Winner

Author: Amin Saeedi <e-mail contact>

Tic-Tac-Toe game using alpha beta search algorithm

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`95.8%`	`95.8%`	`83.3%`	`95.8%`	`79.2%`	`-`	`83.3%`	2
Month:	Not yet rated by the users

	2. Polygon

PHP Programming Innovation award nominee

August 2005
Number 5

Author: Brenor Brophy <e-mail contact>

Perform geometric operations on polygons

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`94.4%`	`94.4%`	`88.9%`	`91.7%`	`-`	`-`	`74.7%`	60
Month:	Not yet rated by the users

	3. gPoint

Author: Brenor Brophy <e-mail contact>

Convert geographic coordinates between projections

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`95.8%`	`100.0%`	`87.5%`	`79.2%`	`-`	`-`	`74.6%`	62
Month:	Not yet rated by the users

	4. Sun

July 2004
Number 6

Author: Nesa Simon David <e-mail contact>

Calculate the sunrise and sunset time of any place

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`95.0%`	`90.0%`	`72.5%`	`90.0%`	`-`	`-`	`72.8%`	109
Month:	Not yet rated by the users

	5. Binary search

September 2008
Winner

Author: Alex Fourth <e-mail contact>

Search for data in files using binary search

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`100.0%`	`93.8%`	`-`	`100.0%`	`-`	`-`	`69.4%`	215
Month:	Not yet rated by the users

	6. ELO Calculator

Author: Bogdan Zarchievici <e-mail contact>

Calculates the relative skill levels of players

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`87.5%`	`93.8%`	`81.2%`	`75.0%`	`-`	`-`	`68.8%`	244
Month:	Not yet rated by the users

	7. Celko Visitation Model

Author: Khaled Al-Shamaa <e-mail contact>

Manipulate hierarchic records in a MySQL database

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`91.7%`	`83.3%`	`66.7%`	`75.0%`	`-`	`-`	`68.3%`	269
Month:	Not yet rated by the users

	8. HTML dbtree

Author: jonathan gotti <e-mail contact>

Manipulate hierarchical data stores in database

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`87.5%`	`81.2%`	`75.0%`	`75.0%`	`-`	`-`	`66.9%`	341
Month:	Not yet rated by the users

	9. ArAutoSummarize

February 2006
Number 9

Author: Khaled Al-Shamaa <e-mail contact>

Extract summary phrases from an Arabic text

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`87.5%`	`68.8%`	`87.5%`	`75.0%`	`-`	`-`	`66.9%`	342
Month:	Not yet rated by the users

	10. Advanced Randomizer

Author: Jonas Raoni Soares Silva <e-mail contact>

Retrieve random items based on given probability

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`65.0%`	`80.0%`	`90.0%`	`90.0%`	`80.0%`	`-`	`66.5%`	359
Month:	Not yet rated by the users

	11. Spell Corrector

October 2008
Winner

Author: Felipe Ribeiro <e-mail contact>

Suggest corrected spelling text in pure PHP

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`100.0%`	`93.8%`	`68.8%`	`-`	`-`	`-`	`66.2%`	364
Month:	Not yet rated by the users

	12. MPTTA for PHP and MySQL

Author: Andrea Giammarchi <e-mail contact>

Manage trees of data stored in a MySQL database

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`93.8%`	`87.5%`	`-`	`87.5%`	`-`	`-`	`64.4%`	479
Month:	Not yet rated by the users

	13. SortMultiArray

Author: Sunny Rajpal <e-mail contact>

Sort a multi-dimmensional array by a column

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`93.8%`	`84.4%`	`-`	`78.1%`	`-`	`-`	`63.1%`	565
Month:	Not yet rated by the users

	14. DoubleMetaPhone

Author: Steve Woodbridge <e-mail contact>

An improved "sounds like" algorithm.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`91.7%`	`83.3%`	`-`	`83.3%`	`-`	`-`	`62.5%`	623
Month:	Not yet rated by the users

	15. String Similarity

Author: Marius Ciotlos <e-mail contact>

Calculate the similarity of two text strings

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`91.7%`	`62.5%`	`-`	`87.5%`	`-`	`-`	`60.8%`	749
Month:	Not yet rated by the users

	16. UID

Author: Zafar Iqbal <e-mail contact>

Generate unique identifier using SHA1 algorithm

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`75.0%`	`70.0%`	`83.3%`	`75.0%`	`-`	`-`	`60.3%`	786
Month:	Not yet rated by the users

	17. Calc Hondt

Author: Alex Corretge <e-mail contact>

Calculate Hondt law coeficients

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`83.3%`	`91.7%`	`-`	`91.7%`	`-`	`-`	`60.0%`	814
Month:	Not yet rated by the users

	18. Fractal

Author: Reza Salehi <e-mail contact>

Render Koch curve fractal images

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`75.0%`	`91.7%`	`66.7%`	`58.3%`	`-`	`-`	`59.2%`	873
Month:	Not yet rated by the users

	19. Ad Rotator

Author: Vedanta Barooah <e-mail contact>

Random ad image list rotator

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`72.2%`	`80.6%`	`72.2%`	`77.8%`	`-`	`-`	`59.2%`	877
Month:	Not yet rated by the users

	20. Graph Coloring

May 2006
Winner

Author: Rupom Razzaque <e-mail contact>

Assign colors to graph points from a vertex list

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`75.0%`	`70.0%`	`70.0%`	`75.0%`	`-`	`-`	`59.0%`	882
Month:	Not yet rated by the users

	21. Perceptron

June 2004
Winner

Author: André Paterlini Oliveira Vieira <e-mail contact>

Perceptron implementation for pattern recognition

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`77.5%`	`65.0%`	`55.6%`	`70.0%`	`-`	`-`	`57.8%`	966
Month:	Not yet rated by the users

	22. phpOCR

February 2006
Winner

Author: Andrey Kucherenko <e-mail contact>

Recognize text & objects in graphical images

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`82.1%`	`85.7%`	`-`	`69.0%`	`-`	`-`	`56.5%`	1040
Month:	Not yet rated by the users

	23. Graf

May 2004
Number 2

Author: Protung Dragos <e-mail contact>

Computing routes and distances between two points

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`70.8%`	`70.8%`	`70.8%`	`66.7%`	`-`	`-`	`56.2%`	1064
Month:	Not yet rated by the users

	24. Moon Phase

Author: kumar mcmillan <e-mail contact>

Calculates the phase of the Moon

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`77.3%`	`83.0%`	`-`	`84.1%`	`-`	`-`	`55.3%`	1120
Month:	Not yet rated by the users

	25. GA

September 2005
Winner

Author: Rafael Pinto <e-mail contact>

Generic genetic algorithms base implementation

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`75.0%`	`91.7%`	`-`	`83.3%`	`-`	`-`	`55.0%`	1143
Month:	Not yet rated by the users

	26. Combinatory Logic

Author: Andrea Giammarchi <e-mail contact>

Calculate and generate array element combinations

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`91.7%`	`91.7%`	`-`	`-`	`-`	`-`	`55.0%`	1158
Month:	Not yet rated by the users

	27. Numerical

Author: Richard Munroe <e-mail contact>

Perform numerical and statistical functions

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`81.2%`	`81.2%`	`-`	`56.2%`	`-`	`-`	`54.4%`	1190
Month:	Not yet rated by the users

	28. PHP Compare Strings

May 2010
Number 11

Author: Er. Rochak Chauhan <e-mail contact>

Compares strings to determine similarity level

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`75.0%`	`75.0%`	`-`	`91.7%`	`-`	`-`	`54.2%`	1212
Month:	There are not enough user ratings to display for this class.

	29. BMI Calculator

December 2005
Number 7

Author: Daniel Thul <e-mail contact>

Compute the body mass index from height and weight

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`75.0%`	`75.0%`	`-`	`83.3%`	`-`	`-`	`53.3%`	1267
Month:	Not yet rated by the users

	30. Probabilistic

Author: Julian Sanchez <e-mail contact>

Perform common probabilistic analisis calculations

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`67.9%`	`71.4%`	`64.3%`	`57.1%`	`-`	`-`	`53.2%`	1279
Month:	Not yet rated by the users

	31. Combinatorics

June 2004
Number 6

Author: stefano dolzi <e-mail contact>

Make combinatorial statistics calculations

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`65.0%`	`75.0%`	`65.0%`	`65.0%`	`-`	`-`	`53.0%`	1298
Month:	Not yet rated by the users

	32. SHA

Author: Chris Monson <e-mail contact>

Pure PHP implementation of the Secure Hash Algorithm.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`89.3%`	`82.1%`	`-`	`-`	`-`	`-`	`52.9%`	1307
Month:	Not yet rated by the users

	33. BinPacker

December 2004
Number 5

Author: Zafar Iqbal <e-mail contact>

Pack files without exceeding a given size limit

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`75.0%`	`75.0%`	`75.0%`	`-`	`-`	`-`	`52.5%`	1336
Month:	Not yet rated by the users

	34. BioR

September 2004
Number 7

Author: iztok strzinar <e-mail contact>

Calculate biorhythm curve values and draw diagrams

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`87.5%`	`79.7%`	`-`	`-`	`-`	`-`	`51.7%`	1374
Month:	There are not enough user ratings to display for this class.

	35. Kruskal

November 2004
Number 4

Author: nikita m. kozlvovsky <e-mail contact>

Find minimum spanning tree using Kruskal algorithm

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`70.8%`	`79.2%`	`-`	`75.0%`	`-`	`-`	`50.8%`	1436
Month:	Not yet rated by the users

	36. Barcode128 pattern compute class

Author: GuinuX <e-mail contact>

A class which computes barcode128 pattern

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`85.7%`	`75.0%`	`-`	`-`	`-`	`-`	`50.4%`	1470
Month:	Not yet rated by the users

	37. Dijkstra

April 2009
Number 5

Author: Xu Yulei <e-mail contact>

Find route between points using Dijkstra algorithm

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`83.3%`	`75.0%`	`-`	`-`	`-`	`-`	`49.2%`	1549
Month:	Not yet rated by the users

	38. Binary Tree Algorithms

Author: BasicA <e-mail contact>

There are many types of data structures defined by the pioneer programmers in the past the direct interface to them datastructures have been an imperative but today datastructure have been taken for granted.

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`81.8%`	`70.5%`	`-`	`-`	`-`	`-`	`48.0%`	1612
Month:	Not yet rated by the users

	39. BWT & MTF encoder

December 2006
Number 6

Author: Robin Schuil <e-mail contact>

Compress and decompress data using BWT and MTF

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`58.3%`	`91.7%`	`-`	`91.7%`	`-`	`-`	`47.5%`	1639
Month:	Not yet rated by the users

	40. Encryption

Author: HAMMAD <e-mail contact>

Encrypt and decrypts text with pure PHP

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`67.1%`	`64.5%`	`-`	`67.1%`	`-`	`-`	`46.7%`	1670
Month:	Not yet rated by the users

	41. Love Calculator

Author: DigitalDoener <e-mail contact>

Calculate the love factor between two names

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`62.5%`	`58.3%`	`-`	`83.3%`	`-`	`-`	`45.4%`	1748
Month:	Not yet rated by the users

	42. Quicksort

Author: Bas Jobsen <e-mail contact>

Quicksort produces a sorted sequence of a array

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`62.5%`	`68.8%`	`-`	`68.8%`	`-`	`-`	`45.0%`	1763
Month:	Not yet rated by the users

	43. Joe Celko Nested Sets

Author: Setec Astronomy <e-mail contact>

Manage tree database structure with Celko approach

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`64.3%`	`67.9%`	`-`	`42.9%`	`-`	`-`	`43.2%`	1861
Month:	Not yet rated by the users

	44. Linked List

Author: Bas Jobsen <e-mail contact>

Linked List

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`60.0%`	`65.0%`	`-`	`65.0%`	`-`	`-`	`43.0%`	1869
Month:	Not yet rated by the users

	45. Team schedule maker

August 2007
Number 10

Author: lior <e-mail contact>

Generate season schedules of games played by teams

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`58.3%`	`66.7%`	`-`	`58.3%`	`-`	`-`	`41.7%`	1911
Month:	Not yet rated by the users

	46. Image Nudity Filter

August 2006
Number 2

Author: Bakr Alsharif <e-mail contact>

Determine whether an image may contain nudity

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`48.2%`	`58.9%`	`55.4%`	`60.7%`	`-`	`-`	`41.6%`	1915
Month:	Not yet rated by the users

	47. guaranix Rank

October 2006
Number 8

Author: Cesar D. Rodas <e-mail contact>

Implementation of the Google page rank algorithm

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`55.0%`	`50.0%`	`45.0%`	`40.0%`	`-`	`-`	`41.0%`	1931
Month:	Not yet rated by the users

	48. Histogram class

Author: Jesus M. Castagnetto <e-mail contact>

generate histograms from data set

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`63.9%`	`63.9%`	`-`	`-`	`-`	`-`	`38.3%`	2018
Month:	Not yet rated by the users

	49. Alternate text

Author: Alexander Amzin <e-mail contact>

Alternative strings; (string1|string2|string3)...

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`58.3%`	`58.3%`	`-`	`-`	`-`	`-`	`35.0%`	2110
Month:	Not yet rated by the users

	50. math_class

Author: Christiaan Westerbeek <e-mail contact>

A Math Class containing only one function numconv($systemin, $systemout, $number, $length).

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`50.0%`	`50.0%`	`-`	`-`	`-`	`-`	`30.0%`	2174
Month:	Not yet rated by the users

	51. Guid

Author: Binzy Wu <e-mail contact>

Generate global unique identifiers text values

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`33.3%`	`41.7%`	`66.7%`	`-`	`-`	`-`	`27.5%`	2200
Month:	Not yet rated by the users

	52. Sort

Author: Maldar <e-mail contact>

Sorting arrays with different algorithms

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`41.7%`	`33.3%`	`-`	`-`	`-`	`-`	`24.2%`	2223
Month:	Not yet rated by the users

	53. Prime

Author: Wan-Leong Jiangti <e-mail contact>

Determine if a number is prime number

Ratings	Utility	Consistency	Documentation	Examples	Tests	Videos	Overall	Rank
All time:	`18.8%`	`56.2%`	`-`	`-`	`-`	`-`	`15.0%`	2256
Month:	Not yet rated by the users

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