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geometry

  

tangentpc

  

find the tangent of a point on a circle with respect to that circle

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

tangentpc(l, P, c)

Parameters

l

-

the name of the tangent line

P

-

point

c

-

circle

Description

• 

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.

Examples

withgeometry:

pointA,1,0,circlec,x2+y2=1,x,y

A,c

(1)

tangentpcl,A,c

l

(2)

forml

line2d

(3)

Equationl

1+x=0

(4)

See Also

geometry[TangentLine]

 


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