A trigonometrical calculator, British, 1826-1842

Made:: 1826-1842 in England, Ipswich and Suffolk

maker:: James Tree

A trigonometrical calculator, British, 1826-1842

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Calculating machine for trigonometry made by J. Tree, London and invented by B. B. Catt of Ipswich with case, 1826-1842

Calculating machine for trigonometry made by J. Tree, London and invented by Catt of Ipswich with case, mid 19th century. The device allows rapid solution of plane trigonometrical problems, and the construction of triangles to scale.

Details

Category:: Mathematics

Object Number:: 1907-73

Materials:: ebony, ivory, german silver and complete

type:: calculators and trigonometrical calculators

credit:: J.C. Stevens Auction House

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