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Mathematica

Integral from a numerical list

Mohammad Zaman
Posted 12 years ago
Hello.
I have a list like Acc={0,1,2,2,3,3,4,5,...}; I want to integral fom Acc. with unit step. (Like Trapzoidal Method with (b-a)=1; as same as Cumtrapz  Command in MATLAB . How can I do it.
Could you please help me?
POSTED BY: Mohammad Zaman
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Simon Schmidt
Simon Schmidt
Posted 12 years ago
Accumulate[Most@Acc + Rest@Acc]/2
POSTED BY: Simon Schmidt
Bill Simpson
Bill Simpson
Posted 12 years ago
Acc = {0, 1, 2, 2, 3, 3, 4, 5};
Rest[FoldList[Plus, 0, Map[Total[#]/2 &, Partition[Acc, 2, 1]]]]
POSTED BY: Bill Simpson
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