
求!!!怎么用MATLAB给指定区域填充颜色?在y1=1-x与y2=x+1和x轴围成的三角形区域中填充颜色? 50
>>x=-1:0.01:1;>>y1=1-x;>>y2=x+1;>>plot(x,y1,x,y2),holdon...
>> x=-1:0.01:1;
>> y1=1-x;
>> y2=x+1;
>> plot(x, y1, x, y2),hold on 展开
>> y1=1-x;
>> y2=x+1;
>> plot(x, y1, x, y2),hold on 展开
1个回答
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可这样:
x=-1:0.01:1;
y1=1-x;y2=x+1;y3=zeros(size(x));
plot(x, y1, x, y2,x,y3),hold on
x1=-1:0.01:0;x2=0.01:0.01:1;
z1=x1+1;z2=1-x2;
z=[z1 z2];
area(x,z,'FaceColor','b')
hold off
x=-1:0.01:1;
y1=1-x;y2=x+1;y3=zeros(size(x));
plot(x, y1, x, y2,x,y3),hold on
x1=-1:0.01:0;x2=0.01:0.01:1;
z1=x1+1;z2=1-x2;
z=[z1 z2];
area(x,z,'FaceColor','b')
hold off
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