Difference between revisions of "Vertex Command"
From GeoGebra Manual
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<noinclude>{{Manual Page|version=4.2}}</noinclude> | <noinclude>{{Manual Page|version=4.2}}</noinclude> | ||
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{{command|geometry}} | {{command|geometry}} | ||
;Vertex[ <Conic> ] | ;Vertex[ <Conic> ] | ||
:Returns (all) vertices of the conic section. | :Returns (all) vertices of the conic section. | ||
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;Vertex[ <Inequality> ] | ;Vertex[ <Inequality> ] | ||
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:*<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 ''list1 = {(0, 0), (1, 1)}''.}} | :*<code>{Vertex[(y > x²) ∧ (y < x)]}</code> returns ''list1 = {(0, 0), (1, 1)}''.}} | ||
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;Vertex[ <Polygon> ] | ;Vertex[ <Polygon> ] | ||
:Returns (all) vertices of the polygon. | :Returns (all) vertices of the polygon. | ||
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;Vertex[ <Polygon>, <Index> ] | ;Vertex[ <Polygon>, <Index> ] | ||
:Returns ''n''-th vertex of the polygon. | :Returns ''n''-th vertex of the polygon. | ||
| − | {{Note|1=To get vertices of the polygon / conic | + | {{Note|1=To get the vertices of the objects polygon / conic / inequality in a [[Lists|list]], use <code>{Vertex[Object]}</code>.}} |
Revision as of 18:30, 6 January 2014
- 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]}.
