This API takes the (x,y) starting point and the text. You do this for each of the data points, creating a bar graph with a label below it for each.
您对每个数据点都执行这个操作,为每个数据点创建一个柱状图,其下带有一个标签。
OK, so, if I have a point, at any point, I can slice the graph of my function by two planes, one that's going along the x, one along the y direction.
如果我有一个点,任意一点,我可以用2个平面把函数图像切开,一个是沿x方向,一个沿y方向。
y So, for each x and y, I plot a point at height given with the value of the a function.
对每个x和,在高度为函数值的地方描点。
So this is giving me now that template, better way of saying it, all right, a template now, for a point is x, y, radius, angle.
其他的方法来进行计算,但是这就是典型的我,要放置它们的地方,因此这就给了我一个模板。
It's easy to think of a point as just a list of an x- and a y- coordinate.
或者说有两个元素的数组,把一个点认为是含有x坐标。
This point here then is the present value of your income; it's Y today + / .
直线与x轴的交点表示收入的现值,它等于
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