询问关于数学绘图方面问题。
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下面这个代码是用来绘图的,绘的是sin(x),sin(2x),sin(3x);我目前有个问题就是,这个程序是我在书上copy下来的,但是matlab始终报错,
x1=0:0.02*pi:2*pi;
y1=[sin(x1);sin(2*x1);sin(3*x1);];
figure1=figure('PaperPositon',[0.6345 6.345 20.3 15.23],'PaperSize',[20.98 29.68]);
axes1 = axes('Parent',figure1);
axis(axes1,[0 6.283 -2 2]);
title(axes1,'sin(x)/sin(2x)/sin(3x)');
xlabel(axes1,'x');
ylabel(axes1,'y');
box(axes1,'on');
hold(axes1,'all');
plot1 = plot(x1,y1);
text1 = text('Position',[1.136 -0.9532 0],'String','y=sin(x)','VerticalAlignment','baseline','Parent',axes1)';
text2 = text('Position',[2.266 -0.8947 0],'String','y=sin(2x)','VerticalAlignment','baseline','Parent',axes1)';
text3 = text('Position',[3.395 -0.8947 0],'String','y=sin(3x)','VerticalAlignment','baseline','Parent',axes1)';

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