John of London

John of London (fl. 13th century), mathematician, was described by Roger Bacon as one of two "perfect" mathematicians, together with Pierre de Maricourt. Bacon probably knew John in Paris in the 1260s.[1]

For the 17th-century ship, see John of London (ship).

No works are certainly attributed to him, but he may be the author of an influential table of stellar coordinates. He may also be the 'Master John of London' who designed a form of astrolabe and was described by Roger of Lincoln as astronomus famosus[1] (‘renowned astronomer’).

Notes
  1. Knorr, Wilbur R. (2004). "John of London". Oxford Online Dictionary of National Biography. Oxford University Press. doi:10.1093/ref:odnb/59922. (subscription or UK public library membership required)
gollark: https://qntm.org/number
gollark: https://en.wikipedia.org/wiki/AACS_encryption_key_controversy
gollark: Or the stupidly large numbers representing, say, copyrighted MP3s.
gollark: Or just DMCA-or-whatever-protected encryption keys.
gollark: An interesting consequence of modern computers and copyright law is that some numbers are sort of illegal.
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