Discrete is a collection of algorithms and a GUI around the BigInt framework. It allows to compute integer arithmetic and integer function values to arbitrary precision. So yes, you can compute 1000! (factorial) with this. The GUI parses math input using DDMathParser.
There is no real purpose for this project, other than I think implementing some of the algorithms was interesting and educational. Still, there's a lot of room for improvements. This could be useful for someone who specifically needs to compute integer functions, be it in number theory or theoretical computer science. Speaking of which...
the output of this app is not guaranteed to be correct. In most cases, it is correct, but since there is basically no tests (another area of improvement), I can't guarantee that.
- Basic arithmetic
- Modulo, GCD
- Factorial and double factorial
- Tetriation
- Binomial coefficients
- Variations
- Stirling numbers (1st and 2nd kind)
- Lah numbers
- Arithmetic derivatives
- Fibonacci, Lucas, Catalan and Bell numbers
- Logical and bitwise operators