Tangent line Computes the tangent line of a circumference through a point. Syntax tangent_line(Circumference, Real) tangent_line(Circumference, Point) Description tangent_line(Circumference, Real) Given a circumference and a real , constructs the tangent line passing through the point of angle . tangent_line(Circumference, Point) Given a circumference and a point belonging to the circumference, constructs the tangent line passing through . Related functions Tangent lines, Tangent points Table of Contents Syntax Description Related functions