Polar Command

Polar( <Point>, <Conic> )

Creates the polar line of the given point relative to the conic section.

Polar((0,2), y = x^2 - 3x + 5) creates the line 1.5x + 0.5y = 4

See also Mode polardiameter.svg Polar or Diameter Line tool.
Polar(<Line>, <Conic>)

Creates the pole, given a polar line and a conic.

Polar(1.5x+0.5y=4, y = x^2 - 3x + 5) creates the point (0, 2)