Up a trackless slope climbs the master artist, and at the top, on a windy ridge, whom do you think he meets?

伟大的艺术家在那无路可寻的山峰上攀登，他登上山顶，迎风而立，你们猜他遇到了谁？

耶鲁公开课 - 1945年后的美国小说课程节选

Tangent means that it has the same slope, it just touches the efficient portfolio frontier for risky assets at one point, and the slope of the efficient portfolio frontier, including the riskless asset, is a straight line that goes through the tangency point, here.

相切意味着斜率相同，它与包含风险资产的有效边界,交与一点，而包含无风险资产的，有效边界，则是一条过切点的直线，切点在这里。

耶鲁公开课 - 金融市场课程节选

And so the slope of this thing is f at the triple point, which is this point here, this is the temperature of the triple point of water, f divided by 273.16. That's the slope of that line.

除以x轴的坐标,这就是斜率，而直线,经过原点，因此斜率乘上T就得到。

麻省理工公开课 - 热力学与动力学课程节选