Scientific Calculator

Since your new at this, I will start you off with something simple. I'm in need of a very advanced scientific calculator. This Calculator must include all the functions of Window's default calculator, plus more. Some functions that must be included are: The Ability to calculate time; The Ability to calculate and display over millions of digits if requested; Undo and Redo Previous Calculation; Multiple Memory Slots; Conversions for Units of Measurements; The ability to automatically calculate Algebra; The ability to automatically calculate area, volume, surface area of any geometric figure; Possible to do long equations with order of operation included; And other features useful in daily life.

The project can be made as a program, a web page, or a combination of both. If it is made as a program, I require it to not take up more than 1GB of my disk space and calculations must be done quickly. If it is done as a web page, the script can only be done as PHP, HTML or Javascript, and I would require the original script for hosting on my own site, it too, cannot take up ore than 1GB of my disk space.

The amount I will offer will vary dependent on the speed of the creation of the program, speed of the program it self, the amount of disk space it takes up, the quality of the program, and other traits.