Skiddaw Slate (as opposed to Honister slate which has a green hue) and is used for building, in the Lake District. The traditional buildings of Keswick and other settlements are almost entirely of Skiddaw slate. The slate is also used for making souvenirs, monuments, ornaments etc. Smaller fragments are used for gravels or for ornamental pathways. Skiddaw Slate Skiddaw slate is an early Ordovician metamorphosed sedimentary rock, as first identified on the slopes of Skiddaw in the English Lake District. The base of this series is unknown. The thickness could, therefore, amount to several thousand feet of sediment. These sediments were formed
Proxmap sort It is a form of bucket and radix sort. Once a ProxmapSort is complete, ProxmapSearch can be used to find keys in the sorted array in formula_1 time if the keys were well distributed during the sort. Both algorithms were invented in the late 1980s by Prof. Thomas A. Standish at the University of California, Irvine. In general: Given an array A with "n" keys: Simplied version: Given an array A with "n" keys Note: "keys" may also contain other data, for instance an array of Student objects that contain the key plus a student ID and name. This makes