geometry
powerpc
compute power of a given point with respect to a given circle
Calling Sequence
Parameters
Description
Examples
powerpc(P, c)
P
-
point
c
circle
The power of point P with respect to circle c is −R2+d2 where d is the distance from point P to the center of c, and R is the radius of c.
The command with(geometry,powerpc) allows the use of the abbreviated form of this command.
withgeometry:
_EnvHorizontalName≔a:_EnvVerticalName≔b:
pointA,3,0,pointB,67,2:
circlec,a2+b2=1:
powerpcA,c
8
powerpcB,c
18349
See Also
geometry[HorizontalName]
geometry[VerticalName]
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