请问如何使用Matlab绘制函数图象啊
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:综合作业 时间:2024/07/10 11:46:58
请问如何使用Matlab绘制函数图象啊
就像我们在学习函数时绘制的那种图象
让坐标轴在相交于坐标原点,
类似于这种图象一样
![](http://img.wesiedu.com/upload/8/4e/84e2a5848eb65d93ae001b2ca9c8d074.jpg)
就像我们在学习函数时绘制的那种图象
让坐标轴在相交于坐标原点,
类似于这种图象一样
![](http://img.wesiedu.com/upload/8/4e/84e2a5848eb65d93ae001b2ca9c8d074.jpg)
![请问如何使用Matlab绘制函数图象啊](/uploads/image/z/3913331-59-1.jpg?t=%E8%AF%B7%E9%97%AE%E5%A6%82%E4%BD%95%E4%BD%BF%E7%94%A8Matlab%E7%BB%98%E5%88%B6%E5%87%BD%E6%95%B0%E5%9B%BE%E8%B1%A1%E5%95%8A)
在Matlab中坐标轴画成这样比较麻烦.并不是matlab图表的风格
但也可以试一试:
![](http://img.wesiedu.com/upload/4/61/4613806b8590cd152ed1781bbd0dfc79.jpg)
x=-1:0.1:6;y= x.^2-5*x+3;plot(x,y,'-m');grid on;text(3,5,'Y=x^2-5x+3');hold on;axis off;% GET TICKSX=get(gca,'Xtick');Y=get(gca,'Ytick');
% GET LABELSXL=get(gca,'XtickLabel');YL=get(gca,'YtickLabel');
% GET OFFSETSXoff=diff(get(gca,'XLim'))./40;Yoff=diff(get(gca,'YLim'))./40;
% DRAW AXIS LINEsplot(get(gca,'XLim'),[0 0],'k');plot([0 0],get(gca,'YLim'),'k');
% Plot new ticks for i=1:length(X) plot([X(i) X(i)],[0 Yoff],'-k');end;for i=1:length(Y) plot([Xoff, 0],[Y(i) Y(i)],'-k');end;
% ADD LABELStext(X,zeros(size(X))-2.*Yoff,XL);text(zeros(size(Y))-3.*Xoff,Y,YL);
但也可以试一试:
![](http://img.wesiedu.com/upload/4/61/4613806b8590cd152ed1781bbd0dfc79.jpg)
x=-1:0.1:6;y= x.^2-5*x+3;plot(x,y,'-m');grid on;text(3,5,'Y=x^2-5x+3');hold on;axis off;% GET TICKSX=get(gca,'Xtick');Y=get(gca,'Ytick');
% GET LABELSXL=get(gca,'XtickLabel');YL=get(gca,'YtickLabel');
% GET OFFSETSXoff=diff(get(gca,'XLim'))./40;Yoff=diff(get(gca,'YLim'))./40;
% DRAW AXIS LINEsplot(get(gca,'XLim'),[0 0],'k');plot([0 0],get(gca,'YLim'),'k');
% Plot new ticks for i=1:length(X) plot([X(i) X(i)],[0 Yoff],'-k');end;for i=1:length(Y) plot([Xoff, 0],[Y(i) Y(i)],'-k');end;
% ADD LABELStext(X,zeros(size(X))-2.*Yoff,XL);text(zeros(size(Y))-3.*Xoff,Y,YL);