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@@ -55,7 +55,12 @@
 55 55 ` @classmethod` 56 56 ` def from_christoffels(cls, chris, parent_metric=None):` 57 57 ` """` 58 - ` Get Riemann Tensor calculated from a Christoffel Symbols` 58 + ` Get Riemann Tensor calculated from Christoffel Symbols.` 59 + ` Reimann Tensor is given as:` 60 + 61 + ` .. math::` 62 + ` R^{t}{}_{s r n}=\\Gamma^{t}{}_{s n, r} - \\Gamma^{t }{}_{s r, n } +` 63 + ` \\Gamma^{p}{}_{s n}\\Gamma^{t}{}_{p r} - \\Gamma^{p}{}_{s r}\\Gamma^{t}{}_{p n}` 59 64 60 65 ` Parameters` 61 66 ` ----------`
@@ -79,9 +84,9 @@
 79 84 ` r = (int(i / dims)) % (dims)` 80 85 ` s = (int(i / (dims ** 2))) % (dims)` 81 86 ` t = (int(i / (dims ** 3))) % (dims)` 82 - ` temp = sympy.diff(arr[t, s, n], syms[r]) - sympy.diff(arr[t, r, n], syms[s])` 87 + ` temp = sympy.diff(arr[t, s, n], syms[r]) - sympy.diff(arr[t, s, r], syms[n])` 83 88 ` for p in range(dims):` 84 - ` temp += arr[p, s, n] * arr[t, p, r] - arr[p, r, n] * arr[t, p, s]` 89 + ` temp += arr[p, s, n] * arr[t, p, r] - arr[p, s, r] * arr[t, p, n]` 85 90 ` riemann_list[t][s][r][n] = sympy.simplify(temp)` 86 91 ` if parent_metric is None:` 87 92 ` parent_metric = chris.parent_metric`
 1 ```ignore: ``` 2 ``` - "tests/" ``` 3 ``` - "bin/" ```