Fix documentation misprint, modulus should be norm.

dealii · Oct 22, 2022 · 2df4370 · 2df4370
1 parent aa053f4
commit 2df4370
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/include/deal.II/non_matching/immersed_surface_quadrature.h b/include/deal.II/non_matching/immersed_surface_quadrature.h
@@ -84,7 +84,8 @@ namespace NonMatching
    * \int_{S\cap F} f dr =
    * \int_{S\cap F} f |d\bar{r}| =
    * \int_{\hat{S}\cap\hat{F}} f \circ F_{K} | J d\hat{r}|
-   * \approx \sum_{q} f \left(F_{K}(\hat{x}_{q}) \right) |J_q \hat{t}_q| w_q,
+   * \approx \sum_{q} f \left(F_{K}(\hat{x}_{q}) \right) \|J(\hat{x}_q)
+   * \hat{t}_q \| w_q,
    * @f]
    * where $\hat{t}_q = \hat{n}_q \times \hat{n}_F$ is the tangent to the curve
    * at $\hat{x}_q$ and $\hat{n}_F$ is the face normal. It would be possible to