How do you generate an integration plot on matlab?

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Josh Hunt
Josh Hunt 2015-9-24
回答： Star Strider 2015-9-24
This is my logic:
Range = 0 - 100;
A = x-1;
B = Integrate the function (1/x^2) from 0 - 100;
C = A + B
Plot (x, C)
This is what I would like to generate a plot of; its the addition of the 2 function (C). But one of them being an integration of (1/x^2), which is being added with (x-1).
I typed something and I don't think its correct, any help is appreciated? (I am new to matlab)
  1 个评论
Josh Hunt
Josh Hunt 2015-9-24
编辑：Josh Hunt 2015-9-24
My code:
X = linspace(0,100,100);
Y = (1./X.^2);
W = (X-1);
Z = (cumtrapz(X,Y));
plot(X , [W; Y; Z]);
grid on;
xlabel('x axis');
ylabel('y axis');
title('Graph');

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回答（1 个）

Star Strider
Star Strider 2015-9-24
I’m not clear on what you want to do. See if this works:
X = linspace(0,100,100);
Y = (1./X.^2);
W = (X-1);
Z = (cumtrapz(X,Y));
plot(X , [Y; W+Z]);
grid on
xlabel('x axis')
ylabel('y axis')
title('Graph')

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