Cleanup: spelling

2 files changed, 3 insertions, 3 deletions

diff --git a/source/blender/blenlib/intern/BLI_kdopbvh.c b/source/blender/blenlib/intern/BLI_kdopbvh.c
index da67baf0ead..9d1981b3392 100644
--- a/source/blender/blenlib/intern/BLI_kdopbvh.c
+++ b/source/blender/blenlib/intern/BLI_kdopbvh.c
@@ -769,7 +769,7 @@ static void non_recursive_bvh_div_nodes_task_cb(void *__restrict userdata,
  * This functions builds an optimal implicit tree from the given leafs.
  * Where optimal stands for:
  * - The resulting tree will have the smallest number of branches;
- * - At most only one branch will have NULL childs;
+ * - At most only one branch will have NULL children;
  * - All leafs will be stored at level N or N+1.
  *
  * This function creates an implicit tree on branches_array,
@@ -777,7 +777,7 @@ static void non_recursive_bvh_div_nodes_task_cb(void *__restrict userdata,
  *
  * The tree is built per depth levels. First branches at depth 1.. then branches at depth 2.. etc..
  * The reason is that we can build level N+1 from level N without any data dependencies..
- * thus it allows to use multithread building.
+ * thus it allows to use multi-thread building.
  *
  * To archive this is necessary to find how much leafs are accessible from a certain branch,
  * #BVHBuildHelper, #implicit_needed_branches and #implicit_leafs_index
diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c
index bc06882b67a..92cfd09f191 100644
--- a/source/blender/blenlib/intern/math_matrix.c
+++ b/source/blender/blenlib/intern/math_matrix.c
@@ -2388,7 +2388,7 @@ void interp_m3_m3m3(float R[3][3], const float A[3][3], const float B[3][3], con
   mat3_polar_decompose(A, U_A, P_A);
   mat3_polar_decompose(B, U_B, P_B);
 
-  /* Quaterions cannot represent an axis flip. If such a singularity is detected, choose a
+  /* Quaternions cannot represent an axis flip. If such a singularity is detected, choose a
    * different decomposition of the matrix that still satisfies A = U_A * P_A but which has a
    * positive determinant and thus no axis flips. This resolves T77154.
    *