I would like to understand why sometimes the indefinite article is used, I thought that the whole name, the concept is "the Turing machine". In texts, I often see it used as a regular noun (the first mention is with "a", then with "the"]. We do not say "a Newton Theory of Gravity",as far as I know. What is the difference then?
We may think of a Turing machine as a...
We used Fourier analysis to evaluate the
Why here "analysis" does not need an article?
Can it be because we regarding the machine, can talk about a specific instance? But even then I would say we still talk about the concept, which is still the same.