Blogs : Khmer

This is a PHP class to do various calculations with zip codes. Its primary purposes are to calculate the distance between two zip codes and to extract all the zip codes that are within a range of a given zip code. All calculations are based on lattitude and longitude coordinates stored in the database. Included [...]

Two separate functions used for conversion of temperatures from Fahrenheit to Celsius and back again. Developed as separate functions since most applications Ive used them for are only going one way or the other.

This is a great script if you want to calculate the prime numbers. The script is extremely fast and can calculate any prime number. Depending on your settings in php.ini this script can run for ever and calculate every possible prime number.
This code can be easy modified for generating passwords or other security features.

This PHP Calculator is an updated version of the Version 1.0 which was hosted on GodfatherUk.Com. It doesnt use any databases or Javascript. It doesnt require any coding knowledge. Just simply edit the settings, upload it to your website, and away you go!
When online, you simply enter the values, and select which action you wish [...]

This class computes operations such as: primes factorization, herathostenes sieve, other operations as prime/perfect number detection. It might be very useful to teachers for didactical purposes, for example.

Simple mortgage calculators just do not cut it anymore. Life is just more complex than down payments and interest rates. Real Life Mortgage Calculator is freeware you can add to your site gives your visitors a much better picture of how much house you can afford than a simple mortgage calculator. It calculates upfront costs, [...]

Looking for a UPS shipping rate calculator for your website. You have come to the right place. If your customers want flexibility and control over the shipment of their online purchases, your e-commerce site needs UPS OnLine? Tools Rates & Service Selection. This tool identifies all the available UPS domestic and international services and displays [...]

Does everything you want a calculator to do. Simple design that will work on most/all sites.

Currency conversion script for websites. Allows you to offer visitors the ability to convert between ANY world currencies. Very easy to install on any site, even a site with just HTML. Currency rates are automatically updated daily.

This script is written for calculation of historically correct string diameters on early baroque violins, violas, cellos or any other instruments tuned in 5th, which use gut and historical wound gut strings.