Yates, Robert C. (1941), "The Trisection Problem, Chapter III: Mechanical trisectors", National Mathematics Magazine, 15 (6): 278–293, doi:10.2307/3028413, JSTOR3028413, MR1569903.
The word "neusis" is described by La Nave, Federica; Mazur, Barry (2002), "Reading Bombelli", The Mathematical Intelligencer, 24 (1): 12–21, doi:10.1007/BF03025306, MR1889932, S2CID189888034 as meaning "a family of constructions dependent upon a single parameter" in which, as the parameter varies, some combinatorial change in the construction occurs at the desired parameter value. La Nave and Mazur describe other trisections than the tomahawk, but the same description applies here: a tomahawk placed with its handle on the apex, parameterized by the position of the spike on its ray, gives a family of constructions in which the relative positions of the blade and its ray change as the spike is placed at the correct point.
Yates, Robert C. (1941), "The Trisection Problem, Chapter III: Mechanical trisectors", National Mathematics Magazine, 15 (6): 278–293, doi:10.2307/3028413, JSTOR3028413, MR1569903.
The word "neusis" is described by La Nave, Federica; Mazur, Barry (2002), "Reading Bombelli", The Mathematical Intelligencer, 24 (1): 12–21, doi:10.1007/BF03025306, MR1889932, S2CID189888034 as meaning "a family of constructions dependent upon a single parameter" in which, as the parameter varies, some combinatorial change in the construction occurs at the desired parameter value. La Nave and Mazur describe other trisections than the tomahawk, but the same description applies here: a tomahawk placed with its handle on the apex, parameterized by the position of the spike on its ray, gives a family of constructions in which the relative positions of the blade and its ray change as the spike is placed at the correct point.
jstor.org
Yates, Robert C. (1941), "The Trisection Problem, Chapter III: Mechanical trisectors", National Mathematics Magazine, 15 (6): 278–293, doi:10.2307/3028413, JSTOR3028413, MR1569903.
The word "neusis" is described by La Nave, Federica; Mazur, Barry (2002), "Reading Bombelli", The Mathematical Intelligencer, 24 (1): 12–21, doi:10.1007/BF03025306, MR1889932, S2CID189888034 as meaning "a family of constructions dependent upon a single parameter" in which, as the parameter varies, some combinatorial change in the construction occurs at the desired parameter value. La Nave and Mazur describe other trisections than the tomahawk, but the same description applies here: a tomahawk placed with its handle on the apex, parameterized by the position of the spike on its ray, gives a family of constructions in which the relative positions of the blade and its ray change as the spike is placed at the correct point.
