Difference between revisions of "Vertex Command"
From GeoGebra Manual
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:{{example|1=<br> | :{{example|1=<br> | ||
:*<code>Vertex[(x + y < 3) && (x - y > 1)]</code> returns point ''A = (2, 1)''. | :*<code>Vertex[(x + y < 3) && (x - y > 1)]</code> returns point ''A = (2, 1)''. | ||
| − | :*<code>{Vertex[(x + y < 3) ∧ (x - y > 1) && (y > - 2)]}</code> returns | + | :*<code>{Vertex[(x + y < 3) ∧ (x - y > 1) && (y > - 2)]}</code> returns ''list1 = {(2, 1), (5, -2), (-1, -2)}''. |
:*<code>Vertex[(y > x²) ∧ (y < x)]</code> returns two points ''A = (0, 0)'' and ''B = (1, 1)''. | :*<code>Vertex[(y > x²) ∧ (y < x)]</code> returns two points ''A = (0, 0)'' and ''B = (1, 1)''. | ||
| − | :*<code>{Vertex[(y > x²) ∧ (y < x)]}</code> returns | + | :*<code>{Vertex[(y > x²) ∧ (y < x)]}</code> returns ''list1 = {(0, 0), (1, 1)}''.}} |
Revision as of 10:19, 12 July 2013
- 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 vertices of the polygon / conic as list, use
{Vertex[t]}.
