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geometry[IsOnCircle] - test if a point, a list, or set of points is on a circle
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Calling Sequence
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IsOnCircle(f, c, cond)
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Parameters
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f
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a point, a list or a set of points
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c
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a circle
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cond
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(optional) a name
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Description
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The routine returns true if the point f or the list/set of points f is on circle c; false if it is not; and FAIL if it is unable to reach a conclusion.
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In case of FAIL, if the third optional argument is given, the condition that makes f on circle c is assigned to this argument. It will be either of the form  or of the form  where expr, expr_i are Maple expressions.
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The command with(geometry,IsOnCircle) allows the use of the abbreviated form of this command.
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Examples
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![circle(c1, x^2+y^2 = 1, [x, y]), circle(c2, (x-2)^2+y^2 = 1, [x, y]), point(A, -1, 0)](/support/helpjp/helpview.aspx?si=5867/file04069/math99.png)
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IsOnCircle: "hint: the following conditions must be satisfied: {24/25+b^2 = 0, 13/4+a^2-4*a = 0}"
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Download Help Document
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