内容来自网络,链接忘了
x = -pi:pi/10:pi;
y = tan(sin(x)) - sin(tan(x));
plot(x,y,'rs-','LineWidth',1,'MarkerEdgeColor','k',...
'MarkerFaceColor','g','MarkerSize',10);
% set(gca,'XTick',[])
box off
ax2 = axes('Position',get(gca,'Position'),...
'XAxisLocation','top',...
'YAxisLocation','right',...
'Color','none',...
'XColor','k','YColor','k');
set(ax2,'YTick', []);
set(ax2,'XTick', []);
box on
效果图
![](https://img.haomeiwen.com/i12827629/3905ce805922dae3.png)
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