在matlab中如何使图中显示非输入的坐标值，即曲线上其他的点的坐标

Question

例
t=[0,5,10,15,20,25,30,35,40,45,50,55,60,65,70,75,80,85];
y=[0,0.001,0.002,0.018,0.085,0.167,0.231,0.329,0.425,0.501,0.563,0.589,0.612,0.661,0.679,0.688,0.700,0.701];
plot(t,y);
hold on;
画出图形后，怎么查看y=0.273时的t值？
请大神们解答

Answer 1

点击plot窗口工具栏data cursor按钮
双击曲线上任一点
拖动游标（黑色小方块）查看数值
可用alt+双击，添加其他游标追问

鼠标在y=0.273的时候不能够挺住，直接在到下一个t为整十或整五，怎么办

Answer 2

在图形界面，右键点击“选择样式-鼠标位置”即可。