Reference numberCLP/24/29/2
Alternative reference numberCLP/24/29 p4
TitleDiagram, 'Solutions to certain geometrical problems' by John Collins
Date17th century
DescriptionDiagram for solving two problems posited in the mathematical writings on the calculation of conic sections by Apollonius of Perga. Shows triangles and lines with angles. John Collins used geometrical methods to solve these problems. Collins also refers to the seventeenth lecture of Dr Isaac Barrow's Dioptricks, i.e. Barrow's Lectiones opticae (1669).

See also a longer explanation by Collins in his letter [CLP/24/38].

The solutions begin: 'In a rectangle angle there is knowne x = difference of its sides, and n = difference of the segment made by the perpendicular drawn from the right angle on its base and the said perpendicular'.

Subject: Mathematics
Physical descriptionInk on paper
Access statusOpen
Related records in the catalogueCLP/24/29/1
Fellows associated with this archive
NA2898Collins; John (1625 - 1683); mathematician and scientific administrator1625 - 1683
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