Approximation of pi based on sqrt(10)

[Dieter]

(09-07-2017 07:10 PM)Thomas Okken Wrote:  Not a native speaker, but what you're looking for is "decimal places."
https://en.wiktionary.org/wiki/decimal_place

Thank you.

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. #-)

Dieter,
confused.