Methods of house division that associate the ascendant with the cusp of the 1st house, the MC with the cusp of the 10th house, the descendant with the cusp of the 7th house and the IC with the cusp of the 4th house, and then seek an equal division (of time or space) within those quadrants. The equal house system is not a quadrant system, and so the MC does not necessarily denote the cusp of the 10th house.