integrate identical values give different results

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mike 2018-3-31

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https://ww2.mathworks.cn/matlabcentral/answers/391837-integrate-identical-values-give-different-results

关闭： MATLAB Answer Bot 2021-8-20

I am using second order integration simulink block to integrate the acceleration to get the velocity and position, I have two data sets measured and actual. The acceleration for measured and actual are identical but the velocity and position from the two second order integration blocks are not identical I attached copy for the acceleration plot and the position plot

Acceleration:

Position:

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mike 2018-4-1

When I subtract the signals the maximum value round 3×10^-16

mike 2018-4-1

在 MATLAB Online 中打开

   please see this link for exact problem   https://drive.google.com/openid=0BycJ_aTQNwAUbzBja1dVMWc2TUFRX20yZnVVRmJLSGpxU2M0

also I posted a question for the problem with more description

https://www.mathworks.com/matlabcentral/answers/392001-integrate-identical-data-give-un-identical

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