Lines 8 and 9 declare x1 and x2.

第8行和第9行声明了x1和x2。

youdao

What is the type for x1 in the Listing 13 code?

在清单13中，x1的类型是什么？

youdao

If you still don't believe in the type for x1, just type in Listing 14.

如果您仍然不相信x1的类型，就看看清单14。

youdao

The return on the portfolio is x1 r1 + x2 r2 + x3 r3.

这个投资组合的收益是。

耶鲁公开课 - 金融市场课程节选

x1 The portfolio mean and variance will depend on x1 x1=1 in the way that if you put--if you made x1 = 1, it would be asset 1 x1=0 and if you made x1 = 0, then it would be the same as asset 2 returns.

投资组合的均值和方差取决于1,如果你令，投资组合的均值方差就与第一项资产相等1,如果你令，那么它们就会与第二项资产的参数相等。

耶鲁公开课 - 金融市场课程节选

So, if you're doing physics, x2 work is the integral of force, dx, x1 to x2.

如果你正在干活，功就是力的积分，从x1，到。

麻省理工公开课 - 热力学与动力学课程节选

NASA's Game Changing Development Program, part of NASA's Space Technology Program, funds the X1 work.

ENGADGET: NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth

There also are multiple adjustment points, allowing the X1 to be used in many different ways.

ENGADGET: NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth

Here on Earth, IHMC is interested in developing and using X1 as an assistive walking device.

ENGADGET: NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth