HARMONIC FUNCTION
\hɑːmˈɒnɪk fˈʌŋkʃən], \hɑːmˈɒnɪk fˈʌŋkʃən], \h_ɑː_m_ˈɒ_n_ɪ_k f_ˈʌ_ŋ_k_ʃ_ə_n]\
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If a point moves uniformly in a circle, the foot of the perpendicular let fall from it to a fixed diameter has a simple Harmonic motion; the algebraical expression for such a motion is a Simple H. function ; the sum of two or more S. H. functions is a Complex H. function. The motions which occasion sound, light, etc., can be represented by H. F. (For H. progression, vide Progression.)
By Henry Percy Smith
Word of the day
tinctura quininae ammoniata
- A preparation made by dissolving quinin sulphate in alcohol [Br. Ph.].