Engineers' and Mechanics' Pocket-book by Charles Haynes Haswell (1844) "The projections of OP are also called coordinates of the point P : and theĬoordinates are distinguished by the names abscissa and ordinate."Ħ. Trigonometry and Double Algebra by Augustus De Morgan (1849) Rn.E.- As either abscissa is lo square of its ordinal*. "When the other Ordinate and abscissae, or other abscissa and Ordinales are given. Mechanics' and Engineers' Pocket-book of Tables, Rules, and Formulas by Charles Haynes Haswell (1920) The abscissa OM and the ordinate MP are together called the coordinates of. "The lines of the figure are named as follows : OM is called the abscissa of. Plane and Spherical Trigonometry by Leonard Magruder Passano (1918) The ordinate of a point are called the coordinates of the point."ģ. "Thus, the abscissa of Pj is OB¡, the ordinate of Pt is OA\. New School Algebra by George Albert Wentworth (1898) Number x is called the abscissa of P with respect to the origin 0. Let 0 be a fixed point on a line X'OX and P. An Elementary Treatise on the Calculus: With Illustrations from Geometry by George Alexander Gibson (1901) Lexicographical Neighbors of Abscissa abscindedīelow you will find example usage of this term as found in modern and/or classical literature:ġ. OX or PY is the abscissa of the point P of the curve, OY or PX its ordinate, the intersecting lines OX and OY being the axes of abscissas and ordinates respectively, and the point O their origin. Abscissas and ordinates taken together are called coordinates. When a point in space is referred to three axes having a common intersection, the abscissa may be the distance measured parallel to either of them, from the point to the plane of the other two axes. When referred to two intersecting axes, one of them called the axis of abscissas, or of X, and the other the axis of ordinates, or of Y, the abscissa of the point is the distance cut off from the axis of X by a line drawn through it and parallel to the axis of Y. One of the elements of reference by which a point, as of a curve, is referred to a system of fixed rectilineal coordinate axes. The abscissa is also known as the "x" coordinate of a point, shown on the horizontal line, with the ordinate, also known as the "y" coordinate, shown on the vertical line. (context: geometry) The first of the two terms by which a point is referred to, in a system of fixed rectilinear coordinate (Cartesian coordinate) axes. One of the elements of reference by which a point, as of a curve, is referred to a system of fixed rectilineal coördinate axes.ġ. See also: inelastic electron scattering background subtraction.1. Note: Unit of peak area is unit of ordinate (the ordinate is often counts with unit '1') times unit of ~ (e.g. The radial coordinate of the second is plotted along the ~ this second electron is arbitrarily constrained to lie on the line connecting the nucleus and the first electron (along this direction, the inter-electronic interactions are largest). The ~ expresses the sequence of reactants, products, reaction intermediates and transition states and is usually undefined or only vaguely defined by the reaction coordinate (extent of bond breaking or bond making). Definition abscissa series#If we mark on an axis of ~e a series of lengths proportional to angles, and trace ordinates which are proportional to sines or other trigonometrical functions, we get periodic curves of a harmonic character. In the very simplest elementary reactions it might correspond to the str etching or twisting of a particular bond, and be shown to a scale. The " reaction coordinate" plotted along the abscissa represents the changes in atomic coordinates as the system progresses from reactants to products. Latent variable versus observable variable
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