Approximation of pi based on sqrt(10)

[Dieter]

(09-10-2017 12:08 PM)AlexFekken Wrote:  

(09-08-2017 08:58 PM)Dieter Wrote:  ...
Then I read the wiktionary entry for "significant digit" and now I wonder if wiktionary really is a reliable source. According to the given definition ("A digit that is nonzero or, when zero, followed only by further zeros") 1000001 has just two significant digits. #-)

This is probably closer to what everybody has in mind: significant figures

Yes, that's much better, I think.

The Wiktionary definition seems to lack a "not": Something like "A digit that is nonzero or, when zero, followed not only by further zeros" sounds correct to me.
In other words: "A digit that is nonzero or, when zero, followed by at least one non-zero".

However, this still does not address the question of trailing zeros that may be significant, as discussed in the Wikipedia article.

Dieter