Difference between revisions of "Vertex Command"

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Revision as of 22:34, 9 March 2013



Vertex[ <Conic> ]
Returns (all) vertices of the conic section.
Vertex[ <Polygon> ]
Returns (all) vertices of the polygon.
Vertex[ <Polygon>, <Number n> ]
Returns n-th vertex of the polygon.
Note: To get vertices of the polygon / conic as list, use {Vertex[t]}.
Vertex[ <Inequality> ]
Returns the points of intersection of the borders
Example:
Vertex[(x + y < 3) && (x - y > 1)] returns point (2,1)
{Vertex[(x + y < 3) ∧ (x - y > 1)&& (y>-2)]} returns list {(2, 1), (5, -2), (-1, -2)}
Vertex[(y > x²) ∧ (y < x)] returns two points (0, 0) and (1, 1)
{Vertex[(y > x²) ∧ (y < x)]} returns list {(0, 0), (1, 1)}.
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