前向差分矩阵的转置是后向差分矩阵?
1、the matrices Dx and Dy are discrete differentiation operators.
2、Dx and Dy are forward difference operators,and hence DTx and DTy are backward difference operators
在文献中看到上面两句话
1、矩阵Dx和Dy是离散差分矩阵
2、Dx和Dy是前向差分矩阵,因此Dx和Dy的转置是后向差分矩阵
前向差分矩阵的转置是后向差分矩阵怎么理解,前向差分是f(x+1)-f(x),后向差分是f(x)-f(x-1)