XICalc is an integer calculator application with the following features: - Multiple precision integers with millions of digits - Uses Fast Hartley Transform to speed-up long multiplies - Uses Binary Splitting to speed-up computing factorials - Separate input and output notation, base 2 to base 36 - Greatest Common Divisor function - Modulo arithmetic options - Bernoulli numbers, Euler Numbers - Boolean functions - Random number generator - Prime factor algorithm using the Elliptic Curve Method - Number theoretic functions Phi, Sigma and Tau - Prime testing and searching using the Adleman function - Algebraic notation (not reverse polish) - If-then-else statement - Goto statement - Can run XICalc code from files - Hot Help from F1 key - Written in Microsoft Visual C# .NET 2005 for Windows. All of the source is included in the distributed file. Please let me know what you think about this program. -Harry hjsmithh@sbcglobal.net