13.7.7 Tangents to curves in the plane: tangent
See Section 14.6.3 for tangents in space.
The tangent command finds tangents to curves.
-
tangent takes one or two arguments:
or
-
e, a point defined with element (see
Section 13.6.15) using a curve and parameter value.
tangent(C,p) (or tangent(e))
returns and draws the list of lines tangent to the
curve passing through the given point.
Examples.
When tangent is called with an element, the tangent will
change along with the point on the element.