How can be take sum over the subscript of a variable using matlab

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zahid
zahid 2017-4-26
回答： Walter Roberson 2017-4-26
Hellow guys
Suppose I am interested in summing of the variable, e.g
over its subscript "i" How can i do this in the symbolic toolkit?

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回答（1 个）

Walter Roberson
Walter Roberson 2017-4-26
sum(X(1:5).^2)

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