absolute optimal function的用法和样例：
- When cells are damaged by factors such as UV exposure, pollution and glycation, they age before their time and begin to lose optimal function.
- The equivalence between the optimality function and the first order optimal condition is discussed.
- When PSO was trapped into local minima point, proper transforming parameters were selected according to concrete optimal function, and the global optimum resolution was realized by executing RST.
- The optimization function of faults on forming of igneous reservoirs is specially pointed out.