图4：格拉齐亚诺说，大自然讲一种语言，有时这语言非常复杂——象这个函数，其图形与这个沙堆的形状相吻合。

Nature speaks a language, Graziano says, and sometimes that language can look pretty complicated—like the function whose graph mirrors the shape of this pile of sand. (March 2009.)

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但是，它们的图形随处可见，尼克·格拉齐亚诺(nikki Graziano)希望帮助我们认识它们。

But the forms are everywhere, and Nikki Graziano wants to help us see them.

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