5523Perl/CGI Quadratic Equationhttp://tesol.net/scripts/Quadratic-O-Matic/Quadratic-O-Matic is about the simplest program imaginable to set up and to use. You simply call the program up in your web browser, type in the numbers to get your quadratic equation, and click "Solve that puppy." You will then be given the roots of the equation.CGI and Perl > Scripts and Programs > CalculatorsOct 10, 2006Scripts for Educators
SFEBMICalc is a simple Body Mass Index calculator. If a user enters their height (in centimeters or inches) and their weight (in kilograms or pounds), the program will return their Body Mass Index. You can configure it so that either Pounds/Inches or Kilograms/Centimeters is the default, and even change the spelling of Centimeters if you like
This script lets your users enter their information to receive your offers by email. They can choose between multiple lists or just one. Unsubscribing is also automatic. Using MySQL as the database allows the management of millions of contacts. Bulk mail and export to text or CSV files is included. An administration page for the webmaster makes management simple. Installation is easy and the sign-up page can be customized to integrate seemlessly in your site.
AffordaBilly is a simple interest loan calculator, similar to "VeryInteresting" but focused on determining how large a loan the user can afford, given an interest rate and length of the loan in years. Users can choose monthly or bi-weekly payments. The results will show the maximum amount of a loan that the user can afford based on the monthly payment and interest rate. This is a very simple, yet nice educational tool for showing just how much only 1 or 2% interest can make a difference over the course of time. I think it's cool to have students calculate the loan they can afford with a monthly payment, then have them cut that in half and choose "Bi-Weekly". For example, over the course of a 30-year loan at 7% interest, a Bi-Weekly payment of 325 will let you afford about ,000, whereas a Monthly payment of 650 will only let you afford ,000. Take the interest from 7% to 8% over the same term, and you can only afford about ,000. And students wonder why they should care about interest rates and other math stuff? :-) AffordaBilly is a blatant ripoff of the VeryInteresting payment calculator, also available for download from this site.
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