TED演讲之2.0版城市:城市与企业中的奇妙数学(3)
Before I talk about that, 谈到这之前 I've written down at the bottom there 我在底下标出了 the slope of this curve, this straight line. 这条曲线的斜率,即这条直线 It's three-quarters, roughly, 大约为3比4 which is less than one — and we call that sublinear. 小于1,呈“次线性” And here's the point of that. 这里有一点值得注意 It says that, if it were linear, 当最...