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

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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

Answers (2)

KSSV on 22 Jan 2022
Read about trapz.

Louis Alexander
Louis Alexander on 22 Jan 2022
if your curve can be expressed as a function, you can choose
integralintegral2 or integral3

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