Tangent lines Computes the tangent lines of a circumference or conic through an exterior point. Syntax tangent_lines(Circumference, Point) tangent_lines(Conic, Point) Description tangent_lines(Circumference, Point) Given a circumference and an exterior point , returns a list with the tangent lines passing through . tangent_lines(Conic, Point) Given a conic and an exterior point , returns a list with the tangent lines passing through . Related functions Tangent line, Tangent points Table of Contents Syntax Description Related functions