How to calculate the area of specific path under the curve?

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Salah Alfiky
Salah Alfiky 2022-1-22
回答： Louis Alexander 2022-1-22
Area wanted to calculate
this is the area i want to calculate
the code i used
>> i=[0:0.5:3.5];
>> l=18*sqrt(i);
>> plot (i,l)
>> grid on
>>

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回答（2 个）

KSSV
KSSV 2022-1-22
Read about trapz.
Louis Alexander
Louis Alexander 2022-1-22
if your curve can be expressed as a function, you can choose
integral、integral2 or integral3

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