Apfloat

Apfloat is a high performance arbitrary precision arithmetic library which covers much the same ground as Java's BigDecimal and BigInteger, but performs a lot better with very big numbers, and includes a lot more mathematical functions as standard, such as nth roots, log(), exp(), and trigonometry (e.g. have a browse through the documentation for the ApfloatMath class).

Downloads and Links

• FunNumbers.java. A mixed bag of math operations coded with Apfloat and ApInt.
   
  
• FunBigNumbers.java. This code uses Java's BigDecimal and BigInteger to try to mimic FunNumbers.java, but the lack of math functions makes it a lot more work. Arguably, the only advantage of Java classes is the presence of "probable" prime functions in BigInteger.
   
  
• Batch files to easily compile and run my code: compile.bat and run.bat
   
  
• My copies of the apfloat library (504 KB). Unzip this and place the libs folder in the same directory as the examples and batch files.
   
  
• The official library.
   
  
• API docs.
   
  
• A tutorial.