[BITList] Sines, tangents, secants

[John Feltham]

Hugh,

On 25/07/2013, at 17:47 PM, HUGH <chakdara at btinternet.com> wrote:

> An interesting man. I've a shoemaker become instrument maker in the family - John Fulton, 1800-1854. I noted mention of Joseph Raphson, which triggered off "the Raphson slide" in my mind. Online all I can get are websites on the solution of non-linear equations by the Newton-Raphson method.  Is/was there really something called a Raphson slide?

Pop this into Google.

slide rule raphson

ooroo




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