Little application in SVG to draw a linear regression between two points or more in a web browser.With equation of the line. Interaction with mouse.

Orthogonal Least Squares Estimate on a plane, in the simple case of a linear equation, is in fact a problem that can be easily solved analytically with no approximation (see pdf file for detailed explanation). Notice that in the general multidimensio

自己编写的Math类，包括算梯度、直线方程以及两条直线的夹角等等！-I have written Math class, including gradient operator, linear equation and the angle between two straight lines and so on!