area under the graph
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how can i colored area which is under the graph (eg y=mx+c or any graph)with the boundary condition let say x is 2-5 and find the colored area ?
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Wayne King
2012-3-29
You can use fill() to color in the area under the graph of a line, and you can use a numerical integration method like quad() to compute the integral:
x = 0:0.01:1;
y = 2*x-2;
axis([0 1 -2 0]);
x1 = [0 1 1];
y1 = [-2 -2 0];
fill(x1,y1,'r');
hold on;
plot(x,y,'k','linewidth',2);
Q = quad(@(x) 2*x-2,0,1)
更多回答（2 个）
Richard
2012-3-29
0 个投票
Maybe use the area command:
nizar hamadeh
2015-9-22
0 个投票
if auc is 0.9 how can i draw it
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