# Talk:Approximate derivative

From Encyclopedia of Mathematics

How common is nowadays the notation *Dini derivative*? During my studies, I passed daily in front of the statue of our celebrated Ulisse Dini on my way to the math department... nonetheless I never heard of it! But then... in Italy the attribution to italian mathematicians seems to follow strange paths :-)) Camillo 08:55, 7 August 2012 (CEST)

- I do not know, but Google shows that it is used. --Boris Tsirelson 10:13, 7 August 2012 (CEST)

**How to Cite This Entry:**

Approximate derivative.

*Encyclopedia of Mathematics.*URL: http://encyclopediaofmath.org/index.php?title=Approximate_derivative&oldid=27411