jfunction

jfunction is a library to evaluate function terms with one or no variable.

See:
Description

Packages

org.dyndns.kwitte.jfunction

jfunction is a library to evaluate function terms with one or no variable.

usage examples:

• System.out.println(Terms.evaluate("3+4"));     // prints 7
  System.out.println(Terms.evaluate("2*x", 12)); // prints 24
  

• // create a value table for the function f(x) = sin(3*x)+2
  
  /*
   * Pre-compile once to increase performance.
   * This is a lot faster than calling 
   * Terms.evaluate("sin(3*x)+2")
   * 20000 times inside the loop.
   */
  Term myTerm = Terms.compile("sin(3*x)+2");
  
  for (double d = -1000.0; d < 1000.0; d+=0.1) {
      double result = myTerm.evaluate(d);
      System.out.println(d + "\t" + result);
  }
  

See Also:

Terms documentation for the precise grammar of a valid term and for supported term features.