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The Royal Society: Science in the Making

Paper, 'On the computation of the harmonic components of a series representing a phenomenon recurring in daily and yearly periods' by R [Richard] Strachey

Reference number: PP/10/9

Date: 1886

Description

Strachey writes: 'Following the notation commonly used, the general expression for the harmonic components of the successive terms of a series representing a periodically recurring phenomenon, observed at equal intervals of time, is— an = p0 + P1 cos nz+ q1 sin nz + p2 cos 2 nz+ q2 sin 2nz + &c., where an is the observed value of any term in question; z is the angular equivalent of the time interval between the observations.'

Annotations in pencil and ink throughout. Includes six separate computational tables.

Subject: Mathematics

Received 15 April 1886. Read 13 May 1886.

A version of this paper was published in volume 42 of the Proceedings of the Royal Society as 'On the computation of the harmonic components of a series representing a phenomenon recurring in daily and yearly periods'.

Reference number
PP/10/9
Earliest possible date
1886
Physical description
Ink and graphite pencil on paper
Page extent
24 pages
Format
Manuscript

Creator name

Richard Strachey

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Citation

Richard Strachey, Paper, 'On the computation of the harmonic components of a series representing a phenomenon recurring in daily and yearly periods' by R [Richard] Strachey, 1886, PP/10/9, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/pp_10_9/paper-on-the-computation-of-the-harmonic-components-of-a-series-representing-a-phenomenon-recurring-in-daily-and-yearly-periods-by-r-richard-strachey, accessed on 22 January 2025

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    Dates: 1882 - 1894

    The archival collection known as 'Proceedings Papers' is comprised of manuscripts and occasional proofs of scientific papers sent to the Royal Society which were read before meetings of Fellows and printed in full in the Proceedings of the Royal Society.

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