Re: f(x) = 1/x: to be or not to be continuous ...
- From: Vincenzo Librandi <vincenzo.librandweoz@xxxxxxxx>
- Date: Mon, 30 Apr 2007 09:09:03 EDT
Humberto Bortolossi scrive:
Nowadays, most calculus books say that f(x) = 1/x is >discontinuous in x = 0. However, "analytic" oriented >books (like Apostol) say f(x) = 1/x is continuous: the >point 0 doesn't matter, since it doesn't belong
to the function's domain.
I'm really curious to know when and who made this >bifurcation. Whatconcept came first? Any historical >references?
La funzione f(x) = 1/x è discontinua nel punto x = 0.
Solo se si considera una restrizione della stessa nel
primo e terzo quadrante, allora, e solo allora, può
essere considerata continua.
saluti.
Vincenzo Librandi
.
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