trapz between 2 points

Sam
2018 11 27
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更新时间：2018 11 27
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Hello,
I want to calculate the integral under a curve between 2 specific points on the x-axis.
How can I do this?
Thanks.

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madhan ravi
madhan ravi 2018-11-27
编辑：madhan ravi 2018-11-27

0 个投票

Example:
>> x=1:10
x =
1 2 3 4 5 6 7 8 9 10
>> y=rand(1,10)
y =
Columns 1 through 7
0.8147 0.9058 0.1270 0.9134 0.6324 0.0975 0.2785
Columns 8 through 10
0.5469 0.9575 0.9649
>> trapz(x(4:6),y(4:6))
ans =
1.1378
>>

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