geometry
tangentpc
find the tangent of a point on a circle with respect to that circle
Calling Sequence
Parameters
Description
Examples
tangentpc(l, P, c)
l
-
the name of the tangent line
P
point
c
circle
The routine returns l which is the tangent of point P on circle c with respect to c.
For more details on the result, use detail.
The command with(geometry,tangentpc) allows the use of the abbreviated form of this command.
withgeometry:
pointA,1,0,circlec,x2+y2=1,x,y
A,c
tangentpcl,A,c
forml
line2d
Equationl
−1+x=0
See Also
geometry[TangentLine]
Download Help Document