在这个例子中，您会以中心为原点旋转一个正方形，但不填充这个正方形。
In this example, you rotate a square on its center, but do not fill the square.
在原点，向量场是没有意义的。
它告诉我们靠近原点处的斜率。
这是一个绕原点逆时针旋转的向量场。
It's a vector field that just rotates around the origin counterclockwise.
沿这条闭曲线，从原点出发。
因为所有的平面都过原点。
Well, that's because all of your planes have to pass through the origin.
开始的时候，它在原点。
即给定的向量场是以原点为心向外延伸的。
My vector field is really sticking out everywhere away from the origin.
这个向量场看上去是绕原点逆时针走向的。
双向语言中的窗口原点。
但是这不成立,因为在原点处是没有定义的？
But, that doesn't work because at the origin it's not defined. Yes?
这就是到原点的距离ρ
比如说,有一个去掉原点的全空间。
So, for example, let's say that I have a region that's the entire space with the origin removed.
并且这个平面包含了原点和动点，以及速度矢量。
And, that's the plane that contains the origin, the point, and the velocity vector.
点p的位置就是，从原点指向这个运动点的向量。
So, the position of this point, p, is going to be the same as OP knowing the vector OP from the origin to this moving point.
能找到一个以该环路为界，且不经过原点的曲面吗？
Can I find a surface that's bounded by this loop and that does not pass through the origin?
比如，你可以沿直线，从原点到这点，这会简单些。
For example, you can go on a straight line from the origin to that point. That would be slightly easier.
以色列：为了我们的盟约祝福来重整原点。
Israel: Realigning to Ground Zero for our Covenant blessings.
WKT和SVG在坐标系中定义不同的原点。
WKT and SVG define different origins for the coordinate systems.
相比之下，集群中的消息从原点到达多个可能的目标点。
By contrast, messages in a cluster travel from a point of origin to one of several possible destinations.
然后沿单位圆的圆弧走到对角线处，接着这直线回到原点。
That move along the unit circle to the diagonal, and then I move back to the origin in a straight line.
实际上从任何点都可以，我们取原点，这是我最喜欢的点。
Or, actually, anywhere you want, but let's take the origin. That is my favorite point.
这个原点并不在画布的左上角，而是在可见部分的左上角。
The origin isn't in the left corner of the canvas; instead, it is in the left corner of the visible part.
这定律说，也许太阳在这，以太阳作为原点，这有个行星。
So, this law says maybe the sun, let's put the sun here at the origin, and let's have a planet.
在原点右边的细胞为正数，原点左边的细胞为负数。
Cells to the right of the origin are numbered positively, and cells to the left of the origin are numbered negatively.
那就是固定一个方向，固定一条从原点出发沿固定方向的射线。
That means we fix a direction, we fix a ray out from the origin in a certain direction.
所以，这个点，坐标原点(0,0)在这条直线上。
And then in this case actually then X is 0. So the point, the original, the point with coordinates (0, 0) is on the line.
举个例子，取一个圆心为原点的圆盘，重心应该在原点。
For example, take a disk center at the origin, well, the center of mass should be at the origin.
如果旋度在原点有定义，你就可以试试了，计算二重积分。
So, if a curl was well defined at the origin, you would try to, then, take the double integral.
如果旋度在原点有定义，你就可以试试了，计算二重积分。
So, if a curl was well defined at the origin, you would try to, then, take the double integral.
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