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geometry[area] - compute the area of a triangle, square, circle, or ellipse
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Calling Sequence
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area(obj)
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Parameters
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obj
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triangle, square, circle, or ellipse.
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Description
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The routine area returns the area of the input object which is a triangle, a square, a circle, or an ellipse.
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The command with(geometry,area) allows the use of the abbreviated form of this command.
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Examples
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![triangle(ABC, [point(A, 0, 0), point(B, 2, 0), point(C, 1, 3)])](/support/helpjp/helpview.aspx?si=5856/file04094/math51.png)
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![square(Sqr, [point(A, [1, -2^(1/2)+1]), point(B, [2^(1/2)+1, 1]), point(C, [1, 2^(1/2)+1]), point(E, [-2^(1/2)+1, 1])])](/support/helpjp/helpview.aspx?si=5856/file04094/math62.png)
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![circle(c, [point(OO, -3, 2), 2])](/support/helpjp/helpview.aspx?si=5856/file04094/math73.png)
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![ellipse(e, (1/16)*x^2+(1/9)*y^2 = 1, [x, y])](/support/helpjp/helpview.aspx?si=5856/file04094/math84.png)
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| (4) |
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