From the INTRODUCTORY. Errors of Observation. 1. A quantity of which the magnitude is to be determined is either directly measured, or, as in the more usual case, deduced by calculation from quantities which are directly measured. The result of a direct measurement is called an observation . Observations of the kind here considered are thus of the nature of readings upon some scale, generally attached to an instrument of observation. The least count of the instrument is the smallest difference recognized in the ...
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From the INTRODUCTORY. Errors of Observation. 1. A quantity of which the magnitude is to be determined is either directly measured, or, as in the more usual case, deduced by calculation from quantities which are directly measured. The result of a direct measurement is called an observation . Observations of the kind here considered are thus of the nature of readings upon some scale, generally attached to an instrument of observation. The least count of the instrument is the smallest difference recognized in the readings of the instrument, so that every observation is recorded as an integral multiple of the least count. 2. Repeated observations of the same quantity, even when made with the same instrument and apparently under the same circumstances, will nevertheless differ materially. An increase in the nicety of the observations, and the precision of the instrument, may decrease the discrepancies in actual magnitude; but at the same time, by diminishing the least count, their numerical measures will generally be increased; so that, with the most refined instruments, the discrepancies may amount to many times the least count. Thus every observation is subject to an error , the error being the difference between the observed value and the true value; an observed value which exceeds the true value is regarded as having a positive error, and one which falls short of it as having a negative error. 3. An error may be regarded as the algebraic sum of a number of elemental errors due to various causes. So far as these causes can be ascertained, their results are not errors at all, in the sense in which the term is here used, and are supposed to have been removed by means of proper corrections. Systematic errors are such as result from unknown causes affecting all the observations alike. These again are not the subjects of the "theory of errors," which is concerned solely with the accidental errors which produce the discrepancies between the observations.
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Add this copy of The Theory of Errors and Method of Least Squares to cart. $16.27, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of The theory of errors and method of least squares to cart. $18.43, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2016 by Createspace Independent Publishing Platform.
Add this copy of The Theory of Errors and Method of Least Squares to cart. $25.00, fair condition, Sold by GeorgeCrossBooks rated 4.0 out of 5 stars, ships from Lexington, MA, UNITED STATES, published 1890 by Isaac Friedenwald.
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Fair/None--believed as Issued. No Jacket, believed as issued Hardcover, fair condition, with somewhat rubbed brds--some marks and scuffs. somewhat slanted and compressed spine, lightly frayed at base, somewhat bumped and frayed corners. Tanned p. edges, soil on p. tops. somewhat tanned pp. some pencil markings and notes. Ins hinges splitting.
Add this copy of The Theory of Errors and Method of Least Squares to cart. $27.44, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of The Theory of Errors and Method of Least Squares to cart. $30.00, good condition, Sold by T A Borden Books rated 4.0 out of 5 stars, ships from Olney, MD, UNITED STATES, published 1890 by Isaac Friedenwald.
Add this copy of The Theory of Errors and Method of Least Squares [ 1892 to cart. $36.13, new condition, Sold by Revaluation Books rated 4.0 out of 5 stars, ships from Exeter, DEVON, UNITED KINGDOM, published 2009 by Cornell University Library.
Add this copy of The Theory of Errors and Method of Least Squares to cart. $39.00, very good condition, Sold by Banjo Booksellers rated 5.0 out of 5 stars, ships from Andover, MA, UNITED STATES, published 1892 by John Wiley & Sons.
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Very Good. No Jacket. 12mo-over 6¾"-7¾" tall. First printing (states First Edition on the title page with no additional printings listed). 152 pp. plus tables. This appears to be a correction copy (perhaps in preparation for a later edition? ), as there are amended sheets pasted in, and penciled corrections throughout. The boards are bowed. A small piece of the spine tail is missing. In a sound binding with hinges intact.
Add this copy of The Theory of Errors and Method of Least Squares to cart. $42.13, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2022 by Legare Street Press.
