Simulation test illustrates that the presented algorithm is efficient for both one-variable functions and multi-variable functions.

实验测试结果表明，该算法对一元函数和多元函数都有很好的效果。

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And, of course, as with functions of one variable, we don't need things to be defined everywhere.

当然，就像单变量的函数一样，我们不需要函数在任意处都有定义。

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