Thread: 62(1+2) = ?
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Old April 28th, 2011, 08:14 PM   #54 (permalink)
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Originally Posted by EarlyMon View Post
Um. f(x) is literally function of x - and does not mean the variable f is applied to x.

How about functions of the form -

where the last sum is simply the first sum rewritten using the definitions ξn = n/T, and Δξ = (n + 1)/Tn/T = 1/T.No. In the above example, there is no variable f that is applied to variable x.

The f in f(x) is simply a placeholder - for the operations that are applied to x.

We've been trained to think that way for a reason. Commutation - it comes from commutation notation and means 2*3.


So, by direct evaluation, the equation must become 6/2*3 - as had been said before.

well, fine. :-p
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