Vertex Command

Vertex( <Conic> )

Returns (all) vertices of the conic section.

Vertex( <Inequality> )

Returns the points of intersection of the borders.

Examples:

  • Vertex((x + y < 3) && (x - y > 1)) returns point A = (2, 1).

  • {Vertex((x + y < 3) ∧ (x - y > 1) && (y > - 2))} returns list1 = \{(2, 1), (5, -2), (-1, -2)}.

  • Vertex((y > x²) ∧ (y < x)) returns two points A = (0, 0) and B = (1, 1).

  • {Vertex((y > x²) ∧ (y < x))} returns list1 = \{(0, 0), (1, 1)}.

Vertex( <Polygon> )

Returns (all) vertices of the polygon.

Vertex( <Polygon>, <Index n> )

Returns n-th vertex of the polygon.

To get the vertices of the objects polygon / conic / inequality in a list, use {Vertex(Object)}.
Vertex( <Segment>, <Index> )

Returns the start-point (Index = 1) or end-point (Index = 2) of the Segment.