The theory of the imaginary in geometry, together with the trigonometry of the imaginary,

Hatton, J L S2017-01-302017-01-301920http://hdl.handle.net/123456789/148419https://digitallibrary.punjab.gov.pk/handle/1/6095234 p.enProjective Geometry,The theory of the imaginary in geometry, together with the trigonometry of the imaginary,Book