Difference between revisions of "Vertex Command"
From GeoGebra Manual
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| − | ;Vertex[ <Conic> ]:Returns (all) vertices of the conic section. | + | ;Vertex[ <Conic> ] |
| + | :Returns (all) vertices of the conic section. | ||
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| − | ;Vertex[ <Polygon>, < | + | ;Vertex[ <Inequality> ] |
| + | :Returns the points of intersection of the borders. | ||
| + | :{{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) && (y > - 2)]}</code> returns list ''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 list ''list1 = {(0, 0), (1, 1)}''.}} | ||
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| + | |||
| + | ;Vertex[ <Polygon> ] | ||
| + | :Returns (all) vertices of the polygon. | ||
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| + | |||
| + | ;Vertex[ <Polygon>, <Index> ] | ||
| + | :Returns ''n''-th vertex of the polygon. | ||
{{Note|1=To get vertices of the polygon / conic as [[Lists|list]], use <code>{Vertex[t]}</code>.}} | {{Note|1=To get vertices of the polygon / conic as [[Lists|list]], use <code>{Vertex[t]}</code>.}} | ||
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Revision as of 10:05, 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 list 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 list 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]}.
