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.
Etymology [edit]. Originally sampiere, a corruption of the French Saint Pierre (Saint Peter), samphire was named after the patron saint of fishermen because all of the original plants with its name grow in rocky salt-sprayed regions along the sea coast of northern Europe or in its coastal marsh areas.amphire is a name given to a number of distinct edible plants that grow in some coastal areas. 1  Rock samphire, Crithmum maritimum is a coastal species with white flowers that grows in the United Kingdom. 2  Golden samphire, Limbarda crithmoides is a coastal species with yellow flowers that grows across Eurasia. 3  Several species in the genus Salicornia.