error of closure

error of closure

noun Surveying.
1.
the amount by which a closed traverse fails to satisfy the requirements of a true mathematical figure, as the length of line joining the true and computed position of the same point.
2.
the ratio of this linear error to the perimeter of the traverse.
3.
(for angles) the amount by which the sum of the observed angles fails to equal the true sum.
4.
(in leveling) the amount by which an elevation determined by a series of levels fails to agree with an established elevation.
Also called closing error.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Error of closure is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
Collins
World English Dictionary
error of closure
 
n
surveying Also called: closing error the amount by which a computed, plotted, or observed quantity or position differs from the true or established one, esp when plotting a closed traverse

Collins English Dictionary - Complete & Unabridged 10th Edition
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