abscissa

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In coordinate geometry, the x-coordinate of a point – that is, the horizontal distance of that point from the vertical or y-axis. For example, a point with the coordinates (4, 3) has an abscissa of 4. The y-coordinate of a point is known as the ordinate.

The colours of the flag date from Napoleon's invasion in 1796. The design is based on the French tricolour. Effective date: 19 June 1946. >>