Alexandre

I use some giant loops in java, so i made few speed tests, just wanted to share them:

    //             assignment: ~ 1-5 cycles

    //            addition/substraction: ~ 1-5 cycles

    //             multiplication: ~ 3-6 cycles

    // Not so ok... division: ~ 10-20 cycles

    //          Math.pow(...,1 or 2): ~ 55 cycles

    //               Math.exp: ~ 75 cycles

    //              Math.log: ~ 95 cycles

    //                 Math.random: ~ 120 cycles

    //         Math.pow(...,anything): ~ 460 cycles !

    //              Math.pow(...,0.5): ~ 720 cycles !!!

So after that, i made some look-up tables classes for this Math.stuff, 24 times faster than Math.pow, if you want them, just ask!

//  CALCULATIONS IN JAVA - SPEED TESTS :
	//
	// OK in giant loops...
	//			                assignment: ~ 1-5 cycles
	//			addition/substraction: ~ 1-5 cycles
	//			            multiplication: ~ 3-6 cycles
	//
	// Not so ok...                       division: ~ 10-20 cycles
	//
	// Not ok at all...
	//    		           Math.pow(...,1 or 2): ~ 55 cycles
	//     		 	           Math.exp: ~ 75 cycles
	// 			                    Math.log: ~ 95 cycles
	//				     Math.random: ~ 120 cycles
	//		       Math.pow(...,anything): ~ 460 cycles !
	//		  	       Math.pow(...,0.5): ~ 720 cycles !!!

So after that, i made some look-up tables classes for this Math.stuff, 24 times faster than Math.pow, if you want them, just ask!


Few speed tests about the slow Math.stuff... now using lookup tables instead.