Euclid Speidell (died 1702) was an English customs official and mathematics teacher known for his writing on logarithms. Speidell published revised and expanded versions of texts by his father,

John Speidell John Speidell ( fl. 1600–1634) was an English mathematician. He is known for his early work on the calculation of logarithms. Speidell was a mathematics teacher in London and one of the early followers of the work John Napier had previously done ...

. He also published a book called ''Logarithmotechnia, or, The making of numbers called logarithms to twenty five places from a geometrical figure'' in 1688. Speidell lived in Angel Alley in the 1680s and 1690s, according to the

Survey of London The Survey of London is a research project to produce a comprehensive architectural survey of central London and its suburbs, or the area formerly administered by the London County Council. It was founded in 1894 by Charles Robert Ashbee, an Ar ...

.84b Whitechapel High Street
from Survey of London Speidell's name appears on an instrument made by his contemporary Henry Sutton.

References

{{DEFAULTSORT:Speidell, Euclid 17th-century English mathematicians 17th-century births Year of birth uncertain 1702 deaths