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Integral of Signals/Vectors NOT functions

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maxmathlab
maxmathlab 2017-1-18
关闭： MATLAB Answer Bot 2021-8-20
I have a vector of obj. RPM of the wheels and want to know when it reaches a fixed distance.
rpm_vector=[0 0 0 50 150 300 200 30 2 0];
distance= 50;
is it better to use trapz() or cumsum()? I tested trapz with x*x from 1 to 5 and trapz()=42 / integral()=41.67.
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Jordan Ross
Jordan Ross 2017-1-24
Hello,
It sounds like "trapz" might be the better choice since it sounds like you want a numerical approximation for integration.

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