- #1
Legendre
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The definition of a sequence of real numbers is : a function from N to R.
What is the standard way to handle a sequence like (1/log n) where the first term is undefined? Do we instead write (1/log (n+1)) so that the first term is defined? Or leave the first term undefined?
The definition says that the function must map from N to R. So every element in N needs to have a valid image. Would undefined terms violate this definition? E.g. f(1) = (1/log 1) do not exists.
What happens when we have the sequence (An/Bn) where (An) and (Bn) are two convergent sequences with non-zero limits? Some of the terms of (An/Bn) might be undefined due to Bn being 0. Do we drop just those terms or drop the initial terms until all remaining terms are defined?
Thanks!
What is the standard way to handle a sequence like (1/log n) where the first term is undefined? Do we instead write (1/log (n+1)) so that the first term is defined? Or leave the first term undefined?
The definition says that the function must map from N to R. So every element in N needs to have a valid image. Would undefined terms violate this definition? E.g. f(1) = (1/log 1) do not exists.
What happens when we have the sequence (An/Bn) where (An) and (Bn) are two convergent sequences with non-zero limits? Some of the terms of (An/Bn) might be undefined due to Bn being 0. Do we drop just those terms or drop the initial terms until all remaining terms are defined?
Thanks!