正弦函數(sinusoidal function)模擬週期性噉上上落落嘅變數,最基本嘅公式如下[1]:
如果 ,畫做圖(假設 )就係:
計正弦波嗰陣如果揀適當嘅原點,喺 嘅時空就會得出 。喺 嘅時空就係 ,其中 ,即係 。
註
睇埋
參考
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