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A library of simple and readable ANSI C implementations of some square root approximation algorithms
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MichaelDipperstein/sqrt
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DESCRIPTION ----------- This archive contains a simple and readable ANSI C implementation of some square root approximation algorithms, including the algorithm used by the original ENIAC computer, successive approximation, and bisection. This implementation is not intended to be the best, fastest, smallest, or any other performance related adjective. There are other known algorithms that are much faster than these algorithms. I implemented these algorithms out of personal interest. More information on ENIAC algorythm square root may be found at: https://michaeldipperstein.github.io/sqrt.html http://www4.wittenberg.edu/academics/mathcomp/bjsdir/ENIACSquareRoot.htm Successive approximation and bisection are popular techniques and widely discussed. FILES ----- COPYING - Rules for copying and distributing GPL software COPYING.LESSER - Rules for copying and distributing LGPL software gettimeofday.c - Windows code to emulate gettimeofday function. The source for this function comes from Postgres SQL (See file header). Makefile - Makefile for this project (assumes gcc compiler and GNU make) README - This file sample.c - Sample code demonstrating usage of the square root library sqrt.h - Header file for the square root library sqrt.c - Implementation of the square root library BUILDING -------- To build these files with GNU make and gcc, simply enter "make" from the command line. Note: The Makefile assumes the use of gcc in a Linux or Windows environment. Other environments may require customization. USAGE ----- Usage: sample <number of random squares> The sample code will generate <number of random squares> squares and display the square root computed by each algorithm in comparison with the value computed by the sqrt() function in the C math library. AUTHOR ------ Michael Dipperstein (mdipperstein@gmail.com)
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A library of simple and readable ANSI C implementations of some square root approximation algorithms
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LGPL-3.0, GPL-3.0 licenses found
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