Calculators Scripts EvalExpr Calculator Class  EvalExpr was designed to replace basic number inputs with expression inputs where you can use advances features like pows, square root, base convertion, logical operators or even trigonometric and logarithm functions ! A sample calculator script is also given in the package, under the GPL.   Price : Free (LGPL) Version : 1.0 Visit it >>> Free Credit Card Rewards Cost-Benefit Calculator  Many people love the "cashback" or other rewards they they can earn by using a credit card. Credit card companies offer these programs because they know, in the aggregate, they will lead to higher credit card use. But carrying a balance on your credit card quickly erodes the value of any rewards that might be earned by using the card. Use this calculator to guage the cost of paying interest on a credit card balance against the benefit of earning rewards. The calculator assumes that the monthly balance you carry remains relatively constant. If you let this balance grow, the net value of any rewards is diminished further.   Price : n/a Version : 1.0 Visit it >>> Free Currency Conversion Script for ALL currencies  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.   Price : n/a Version : 1.1 Visit it >>> Free PHP Mortgage Calculator  Free PHP mortgage calculator that figures in Private Mortgage Insurance, property tax, and more. Tell it a mortgage amount, percent down, length of mortgage, and interest rate, and the calculator will give you all the mortgage details including a full amortization schedule breakdown.   Price : GPL(Free) Version : 1.0 Visit it >>> Geographic Distance and Azimuth Calculator  This PHP class can be used to calculate the distance between two points of latitude and longitude. The formulas utilized are the Great Circle method, Ellipsoid Approximation, and a more accurate Ellipsoid Calculation. A method is provided to also calculate azimuth between the two points on the earth.   Price : Freeware Version : 1.0 Visit it >>> Historical Violin Viola and Cello String Calculator  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.   Price : Freeware Version : 1.5 Visit it >>> InstaQuote PHP Script  InstaQuote PHP Script is a script that can be customized to figure almost any type of online, instant quote. Can be used by auto insurance providers, real estate companies, web designers, computer service technicians, and many more. The script allows the visitor to indicate his/her choices and provides a nice   Price : 30.00 Version : 1.0 Visit it >>> Pages :  1  2  3  4  5