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.
Black, red, and green are known as the ‘black liberation’ colours, recalling Jamaican black activist Marcus Garvey. Taken from the arms of Nyasaland, the sun indicates the dawning of a new era. Effective date: 6 July 1964.