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| 수학:디락_델타_함수 [2026/04/09 10:50] – [함수와 분포의 합성] admin | 수학:디락_델타_함수 [2026/04/09 11:05] (current) – [함께 보기] admin | ||
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| 혹은 | 혹은 | ||
| $$\delta\left[ g(\mathbf{x}) \right] = \sum_{i=1}^K \frac{\delta(\mathbf{x}-\mathbf{x}_i)}{\left| \nabla g(\mathbf{x}_i) \right|}.$$ | $$\delta\left[ g(\mathbf{x}) \right] = \sum_{i=1}^K \frac{\delta(\mathbf{x}-\mathbf{x}_i)}{\left| \nabla g(\mathbf{x}_i) \right|}.$$ | ||
| + | |||
| + | 계수(rank)가 $n$인 $n\times n$ 실수 행렬 $A$에 대해 다음 식이 성립한다: | ||
| + | $$\delta(A\mathbf{x}) = \frac{1}{\left| \det A \right|} \delta (\mathbf{x}).$$ | ||
| + | |||
| ======함께 보기====== | ======함께 보기====== | ||
| - | [[: | + | * [[: |
| + | ======참고문헌====== | ||
| + | * Lin Zhang, //Dirac Delta Function of Matrix Argument//, [[https:// | ||