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| 수학:푸리에_변환 [2021/11/16 14:30] – [이산 푸리에 급수] admin | 수학:푸리에_변환 [2023/09/05 15:46] (current) – external edit 127.0.0.1 | ||
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| \begin{eqnarray} | \begin{eqnarray} | ||
| c_n &=& \frac{1}{\sqrt{N}} \sum_{j=0}^{N-1} y_j \exp \left( -i \frac{2\pi n j}{N} \right)\\ | c_n &=& \frac{1}{\sqrt{N}} \sum_{j=0}^{N-1} y_j \exp \left( -i \frac{2\pi n j}{N} \right)\\ | ||
| - | y_j &=& \frac{1}{\sqrt{N}} \sum_{n=0}^{N-1} c_n \exp \left(i \frac{2\pi n j}{N} \right) | + | y_j &=& \frac{1}{\sqrt{N}} \sum_{n=0}^{N-1} c_n \exp \left(i \frac{2\pi n j}{N} \right). |
| \end{eqnarray} | \end{eqnarray} | ||