I want to write an algorithm for two circles intersection and touching cases . How can I do it with a quadtratic equation?
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How can I find the points at which two circles intersect?
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Finding an equation for a circle given its center and a point through which it passes
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Finding an equation of circle which passes through three points
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Find intersection of pairs of straight lines
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Intersection of two parabolae
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Radius of a circle touching a rectangle both of which are inside a square
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Calculating circle radius from two points and arc length
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The cow in the field problem (intersecting circular areas)
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How to create a rounded cone
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Equal intersection segments on circles
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The locus of the intersection point of two perpendicular tangents to a given ellipse
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Angle between two circles
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How to determine the point of intersection of two lines?
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Help with Conic: Hyperbola's chord of contact
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How to find intersection of two lines in 3D?
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Illustrator: Is there an efficient and accurate way to join two circles by their tangents (and keep it editable)?
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How to determine the equation and length of this curve consistently formed by the intersection of Circles