翻訳と辞書 Words near each other ・ Triangle Service ・ Triangle Shirtwaist Factory fire ・ Triangle Staff ・ Triangle strip ・ Triangle Studios ・ Triangle Sun ・ Triangle Tech ・ Triangle Theater Company ・ Triangle Torch ・ Triangle Town Center ・ Triangle Township, Durham County, North Carolina ・ Triangle triplefin ・ Triangle United ・ Triangle Universities Nuclear Laboratory ・ Triangle Walks ・ Triangle wave ・ Triangle X Barn ・ Triangle Youth Brass Band ・ Triangle, New York ・ Triangle, Newfoundland and Labrador ・ Triangle, Virginia ・ Triangle, West Yorkshire ・ Triangle, Zimbabwe ・ Triangle-and-two defense ・ Triangle-free graph ・ Triangle.gs ・ TriangleBoy ・ Trianglen, Copenhagen ・ Triangler ・ Triangles (EP) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Triangle wave ： ウィキペディア英語版 Triangle wave A triangle wave is a non-sinusoidal waveform named for its triangular shape. It is a periodic, piecewise linear, continuous real function. Like a square wave, the triangle wave contains only odd harmonics, demonstrating odd symmetry. However, the higher harmonics roll off much faster than in a square wave (proportional to the inverse square of the harmonic number as opposed to just the inverse). ==Harmonics== It is possible to approximate a triangle wave with additive synthesis by adding odd harmonics of the fundamental, multiplying every (4n−1)th harmonic by −1 (or changing its phase by π), and rolling off the harmonics by the inverse square of their relative frequency to the fundamental. This infinite Fourier series converges to the triangle wave with cycle frequency over time : :$\backslash begin$ x_\mathrm(t) & \sum_^\infty (-1)^k \, \frac \\ & \left( \sin (2\pi ft)- \sin (6\pi ft)+ \sin (10\pi ft) - \cdots \right) \end 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Triangle wave」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.