API Docs for: 1.0.0
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File: src/gallery-mathcanvas/js/RealPart.js

  1. /**
  2.  * @module gallery-mathcanvas
  3.  */
  4.  
  5. /**********************************************************************
  6.  * <p>Real part of a complex number.</p>
  7.  * 
  8.  * @namespace MathFunction
  9.  * @class RealPart
  10.  * @extends MathFunction.FunctionWithArgs
  11.  * @constructor
  12.  * @param f {MathFunction}
  13.  */
  14.  
  15. function MathRealPart(
  16. 	/* MathFunction */	f)
  17. {
  18. 	MathRealPart.superclass.constructor.call(this, MathRealPart.NAME, f);
  19. }
  20.  
  21. MathRealPart.NAME = 're';
  22.  
  23. Y.extend(MathRealPart, MathFunctionWithArgs,
  24. {
  25. 	/**
  26. 	 * @method evaluate
  27. 	 * @param var_list {Object} map of variable names to values or MathFunctions
  28. 	 * @return the value of the function
  29. 	 */
  30. 	evaluate: function(
  31. 		/* map */	var_list)
  32. 	{
  33. 		var value = this.args[0].evaluate(var_list);
  34. 		return Y.ComplexMath.isComplexNumber(value) ? value.real() : value;
  35. 	}
  36. });
  37.  
  38. MathFunction.RealPart = MathRealPart;
  39.  
  40. MathFunction.name_map[ MathRealPart.NAME ] =
  41. {
  42. 	applyTo: function(f)
  43. 	{
  44. 		return new MathRealPart(f);
  45. 	}
  46. };
  47.  
  48.