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The ridging hoe, also known as the Warren hoe [10] and the drill hoe, is a triangular (point-down) or heart-shaped draw hoe that is particularly useful for digging narrow furrows ("drills") and shallow trenches for the planting of seeds or bulbs. [11] [12] The Paxton hoe is similar to the Italian hoe, but with a more rounded rectangular blade.
Simply, a collineation is a one-to-one map from one projective space to another, or from a projective space to itself, such that the images of collinear points are themselves collinear. One may formalize this using various ways of presenting a projective space. Also, the case of the projective line is special, and hence generally treated ...
Two variables are perfectly collinear if there is an exact linear relationship between the two, so the correlation between them is equal to 1 or −1. That is, X 1 and X 2 are perfectly collinear if there exist parameters λ 0 {\displaystyle \lambda _{0}} and λ 1 {\displaystyle \lambda _{1}} such that, for all observations i , we have
In the study of collineations, the case of projective lines is special due to the small dimension. When the line is viewed as a projective space in isolation, any permutation of the points of a projective line is a collineation, [4] since every set of points are collinear. However, if the projective line is embedded in a higher-dimensional ...
The countries in which the French Wikipedia is the most popular language version of Wikipedia are shown in dark blue. Page views by country over time on the French Wikipedia. The audience measurement company Médiamétrie questioned a sample of 8,500 users residing in France with access to Internet at home or at their place of work.
The Nagel point is the isotomic conjugate of the Gergonne point.The Nagel point, the centroid, and the incenter are collinear on a line called the Nagel line.The incenter is the Nagel point of the medial triangle; [2] [3] equivalently, the Nagel point is the incenter of the anticomplementary triangle.
The origin of the name is the method of preparation: they were cooked on a type of iron pan called a hoe. There is conflicting evidence regarding the common belief that they were cooked on the blades of gardening hoes. [12] [13] A hoecake can be made either out of cornbread batter or leftover biscuit dough.
To make a rough estimate of the probability that any given subset of k points is approximately collinear in the way defined above, consider the line between the "leftmost" and "rightmost" two points in that subset (for some arbitrary left/right axis: the top and bottom can be chosen for the exceptional vertical case). A straight line can ...