How to calculate the area of specific path under the curve?
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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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Réponses (2)
KSSV
le 22 Jan 2022
Read about trapz.
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Louis Alexander
le 22 Jan 2022
like this:
i=[0:0.5:3.5];
l=18*sqrt(i);
plot (i,l)
grid on
Q = cumtrapz(l,i)
Q = trapz(l,i)
Louis Alexander
le 22 Jan 2022
if your curve can be expressed as a function, you can choose
integral、integral2 or integral3
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