Abscissa and ordinate 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 whose sign is given by the location on the projection relative to the origin (before: negative; after: positive). The ordinate of a point is the signed measure of its projection on the secondary axis, whose absolute value
Bit-paired keyboard 9 values, 0 being unpaired): …instead of the conventional mechanical typewriter-paired values of: …and the electric typewriter-paired values of: The shifted values of digits in a bit-paired keyboard thus differ from mechanical typewriters only in omitting _ and shifting the remaining characters left. Electric typewriters differ in replacing " with @, _ with ^, and ' with *. This is because smaller characters hit the paper with less force, and consolidating smaller characters such as and into a pair on a single key avoided needing to adjust the force based on shift state. Overall this results in the following comparison