Update parastell/utils.py

Co-authored-by: Paul Wilson <[email protected]>
svalinn · Oct 9, 2024 · 9b13734 · 9b13734
1 parent cd3f865
commit 9b13734
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/parastell/utils.py b/parastell/utils.py
@@ -45,6 +45,7 @@ def enforce_helical_symmetry(matrix):
     # Ensure poloidal symmetry at beginning of period
     matrix[0] = np.concatenate(
         [
+            # ceil and floor ensure middle element of odd sized array is included only once
             matrix[0, : math.ceil(num_columns / 2)],
             np.flip(matrix[0, : math.floor(num_columns / 2)]),
         ]