Abscissa and ordinate a parametric equation. Used in this way, the abscissa can be thought of as a coordinate-geometry analog to the independent variable in a mathematical model or experiment (with any ordinates filling a role analogous to dependent variables). Abscissa and ordinate In mathematics, the abscissa (; plural "abscissae" or "abscissæ" or "abscissas") and the ordinate are respectively the first and second coordinate of a point in a coordinate system. The abscissa of a point is the signed measure of its projection on the primary axis, whose absolute value is the distance between the projection and the origin of the axis, and
Bit-paired keyboard between bit-paired keyboards and (electric) typewriter-paired keyboards: they agree in 1, 3, 4, 5, and differ in 2, 6, 7, 8, 9, 0: bit-pairing replaces @ with " (position 2), removes ^ (position 6, shifting later characters left), and replaces * with ' (position 8/7); there is also no shifted value for 0, as this corresponds to space, which is covered by the space bar. This corresponds in the ASCII table to the following columns (displayed as rows here): There are also less conspicuous differences in the symbol keys: bit-paired and typewriter-paired keyboards agree on (rows 12, 14, and 15)