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[Letter from Prof. Hansteen to Col. Sabine]
Author(s) -
Hansteen
Publication year - 1854
Publication title -
abstracts of the papers communicated to the royal society of london
Language(s) - English
Resource type - Journals
eISSN - 2053-9134
pISSN - 0365-0855
DOI - 10.1098/rspl.1850.0141
Subject(s) - combinatorics , variation (astronomy) , interpolation (computer graphics) , mathematics , crystallography , physics , theology , chemistry , philosophy , astrophysics , computer science , artificial intelligence , image (mathematics)
Dear Sir,— At the end of last year I calculated formulæ of interpolation for different places in Europe, at which I had collected a sufficient number of observations of the magnetical inclination.i =i 1 +x + (t —t 0 )y + (t —t 0 )2 z , . . . . . . . . .. . (I.) wherei 1 +x is the inclination for the yeart 0 x, y, z constants. The annual variation is,di/dt =y + 2(t —t 0 )z . . . . . . . . . . . . .. (II.)

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