6. The art of computer programming, Vol2 Chapter 3, by Kunth, this chapter can be used as a referen

6. The art of computer programming, Vol2 Chapter 3, by Kunth, this chapter can be used as a reference quite.
In other words, the random number is subtracted from the former two chaotic results. All the random number generator, a beginning leem must determine the initial value of Rn in terms of the above, you must first decide how much R0 and R1. This is why at the beginning of the general call to rand, srand with the first reason.
Suppose I want to generate random number leem generator from 0 to 32767, the essays in C language, the code is roughly as follows static int seed1, seed2; const static int M = 32768; void set_seed (int n1, int n2) {seed1 = n1; seed2 = n2;} int fib_seed () {int result = (seed2 - seed1)% M; seed1 = seed2; seed2 = result; return result;}
int fib_seed () {int result = (seed2 - seed1)% M; if (result <0) result = - result; seed2 = seed1; seed1 = result; return result;}
1. Quality (Quality): This fib_gen began to repeat in a short period, failed. 2. Efficiently (efficiency): efficiency is very fast indeed, it only uses a simple assignment, adder, and very efficient. 3. Repeatability (reproducibility): Indeed, can also get other computers. 4. Portability (portable): the system for different results "may" produce out will be different, because the positive mod negative, out of the results are not the same, this part is to see the results of the machine. 5. Simplicity (ease of use): This should be the easiest I've seen a few chaotic leem generator.
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