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In the following equation do i perform the sum first or the power of 2 first?
(sum(k.*cos(b)).^2)

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Roger Stafford
Roger Stafford 2015-2-27
编辑：Roger Stafford 2015-2-27

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As it stands, the summation occurs first, followed by taking the square of that sum. You should be able to determine that from the parentheses.
In case 'b' is more than a one-dimensional array, there will of course be many sums and the square of each one is taken.

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