38 | | where [[latex($ \triangle _i $)]] is called a 'slope' for [[latex($ u_i ^n $)]], that is, for the elements of [[latex($ \vec{u} $)]] in cell i on the nth time level. Using a linear function produces 2 extreme values of each cell, one on the left and on the right: [[latex($ u_l $)]] and [[latex($ u_r $)]], respectively. These values are crucial in the MH scheme and their role will be presented shortly. Their values are given by [[latex($ u_l = u_i(0) = u_i ^n - \frac{1}{2} \triangle_ i $)]] and [[latex($ u_r = u_i(0) = u_i ^n + \frac{1}{2} \triangle_ i $)]]. A schematic of the situation is as follows: |
| 38 | where |
| 39 | |
| 40 | [[latex($ \triangle _i $)]] |
| 41 | |
| 42 | is called a 'slope' for |
| 43 | |
| 44 | [[latex($ u_i ^n $)]], |
| 45 | |
| 46 | that is, for the elements of |
| 47 | [[latex($ \vec{u} $)]] |
| 48 | in cell i on the nth time level. Using a linear function produces 2 extreme values of each cell, one on the left and on the right: |
| 49 | |
| 50 | [[latex($ u_l $)]] |
| 51 | and |
| 52 | |
| 53 | [[latex($ u_r $)]], |
| 54 | respectively. These values are crucial in the MH scheme and their role will be presented shortly. Their values are given by |
| 55 | [[latex($ u_l = u_i(0) = u_i ^n - \frac{1}{2} \triangle_ i $)]] |
| 56 | and |
| 57 | [[latex($ u_r = u_i(0) = u_i ^n + \frac{1}{2} \triangle_ i $)]] |
| 58 | A schematic of the situation is as follows: |