# Difference between revisions of "Vertex Command"

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##### Vertex

This article is about GeoGebra command.

##### Command Categories (All commands)

Vertex[ <Conic> ]
Returns (all) vertices of the conic section.
Vertex[ <Inequality> ]
Returns the points of intersection of the borders.
Example:
• 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> ]
Returns n-th vertex of the polygon.
Note: To get the vertices of the objects polygon / conic / inequality in a list, use {Vertex[Object]}.

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