Alexander John Ellis

  • English writer
  • Born June 14, 1814
  • Died October 28, 1890

Alexander John Ellis, (14 June 1814 – 28 October 1890) was an English mathematician, philologist and early phonetician, who also influenced the field of musicology. He changed his name from his father's name Sharpe to his mother's maiden name Ellis in 1825, as a condition of receiving significant financial support from a relative on his mother's side. He is buried in Kensal Green Cemetery, London.

Rounding to the nearest cent is sufficiently accurate for practical purposes.

Cents are the most universally used interval measure.