来自《耶鲁大学开放课程：博弈论 第19集 第19集》

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  And what did they miss.
  他们忽略了什么呢
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  What did the accountant's miss?
  会计师们忽略了什么
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  They missed the triangle.
  他们忽略了这个三角形
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  So I told you they were boring, they were a little bit square,
  为什么说他们无聊 因为他们太死板
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  so they tend to miss triangles.
  所以他们忽略了这个三角形
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  So here's the triangle that they missed. So we missed this triangle.
  这就是他们忽视的三角形
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  And how big is this triangle?
  这个三角形的面积是多大呢
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  Well we could do it at home, it's 1/2 base x height.
  你们回家算一下吧 底乘高除二
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  So we could figure this out.
  这个很容易算的
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  We know the slope of this line.
  我们能算出这条线的斜率
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  We know the slope of this line is 1/3.
  这条线的斜率是1/3
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  We know the slope of this line is 2/3.
  而这条线的斜率是2/3