Remarks: The intersection point of two polars (for example: ) is the pole of the line through their poles (here: ). The foci and respectively and the directrices and respectively belong to pairs of pole and polar. Pole-polar relations exist for ellipses and parabolas, too.
Remarks: The intersection point of two polars (for example: ) is the pole of the line through their poles (here ) The foci and r:espectively and the directrice.s and respectively belong to pairs of pole and polar. Pole-polar relations exist for ellipses and parabolas, too.