The first derivative can be used to find the relative minimum and relative maximum values of a function over an open interval. These values are often called extreme values or extrema (plural form). A point is considered a minimum point if the value of the function at that point is less than the function values for all x-values in the interval.
Sancerre is a medieval hilltop town (ville), commune and canton in the Cher department of central France overlooking the Loire River.ancerre is a medieval hilltop town (ville), commune and canton in the Cher department of central France overlooking the Loire River.
White Sancerre was one of the original AOCs awarded in 1936, with the same area being designated for red wines on 23 January 1959.The AOC area has expanded fourfold over the years, most recently on 18 March 1998.he yields of Sancerre blanc are limited to a maximum of 60 hectoliters per hectare while Sancerre rouge and rose are restricted to maximum yields of 55 hl/ha. The minimum alcohol content of Sancerre blanc is 10.5% alcohol per volume while Sancerre rouge and rose rosÃ© must maintain a minimum alcohol level of10. %