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.
Overview. 1  Developed in France during the 1500's, the Beauceron is a large sheepdog used by farmers to protect cattle, sheep, and family. 2  The Beauceron breed is a powerful, solid, and well-balanced breed, the Beauceron is tireless and intelligent. 3  Beauceron's are well known for loyalty and devotion.