Integration over elapsed time

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Aswas
Aswas 2015-10-12
评论： Aswas 2015-10-12
I have elapsed time and want to find velocity:(ie time would then be :[0 1 2 3 4 5 6]), any way to do this please, as following code only works when time is specified in increments:
etime = [0 1 1 1 1 1 1]; % elapsed time in sec
a = [0,2,4,7,11,17,24]; %acceleration in m/s^2
v(1)=0;
for k=1:6
v(k+1) = trapz(etime(k:k+1), a(k:k+1))+ v(k);
end
disp([v'])

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采纳的回答

Walter Roberson
Walter Roberson 2015-10-12
t = cumsum(etime);
v = cumtrapz(t, a);

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