| \begin{array}{r}{\boldsymbol{K}_{\gamma_{x_{0}}}=\left(\begin{array}{lll}{0}&{0}&{0}\\{0}&{1}&{1}\\{0}&{0}&{0}\end{array}\right),\boldsymbol{K}_{u_{x_{0}}}=\left(\begin{array}{lll}{0}&{0}&{0}\\{0}&{-\left(\frac{c_{0}\Delta t}{\Delta x}\right)^{2}}&{\left(\frac{c_{0}\Delta t}{\Delta x}\right)^{2}}\\{0}&{0}&{0}\end{array}\right),}\\{\boldsymbol{K}_{\gamma_{x_{1}}}=\left(\begin{array}{lll}{0}&{0}&{0}\\{1}&{1}&{0}\\{0}&{0}&{0}\end{array}\right),\boldsymbol{K}_{u_{x_{1}}}=\left(\begin{array}{lll}{0}&{0}&{0}\\{-\left(\frac{c_{0}\Delta t}{\Delta x}\right)^{2}}&{\left(\frac{c_{0}\Delta t}{\Delta x}\right)^{2}}&{0}\\{0}&{0}&{0}\end{array}\right),}\\{\boldsymbol{K}_{\gamma_{y_{0}}}=\left(\begin{array}{lll}{0}&{0}&{0}\\{0}&{1}&{0}\\{0}&{1}&{0}\end{array}\right),\boldsymbol{K}_{u_{y_{0}}}=\left(\begin{array}{lll}{0}&{0}&{0}\\{0}&{-\left(\frac{c_{0}\Delta t}{\Delta y}\right)^{2}}&{0}\\{0}&{\left(\frac{c_{0}\Delta t}{\Delta y}\right)^{2}}&{0}\end{array}\right),}\\{\boldsymbol{K}_{\gamma_{y_{1}}}=\left(\begin{array}{lll}{0}&{1}&{0}\\{0}&{1}&{0}\\{0}&{0}&{0}\end{array}\right),\boldsymbol{K}_{u_{y_{1}}}=\left(\begin{array}{lll}{0}&{-\left(\frac{c_{0}\Delta t}{\Delta y}\right)^{2}}&{0}\\{0}&{\left(\frac{c_{0}\Delta t}{\Delta y}\right)^{2}}&{0}\\{0}&{0}&{0}\end{array}\right)}\end{array} |
