试一试
ginput
x = linspace (1、10、10);
日元= 2 * x;
y2 = sin (x);
(x0, y0) = ginput (1);%问用户点击
X = (X (:) (:));%获得数据
Y = (y1 (:) y2 (:));%获得数据
D =函数(x0-X y0-Y);%的距离
第九[m] = min (D);%找到最近的点
s1 = sprintf (“x_1: % f;y_1: % f 'X(九(1),1),Y(九(1),1));
s2 = sprintf (“x_2: % f;y_2: % f 'X(九(2),2),Y(九(2),2));
文本(x0, y0, [s1换行s2])
