diff --git a/src/experimental/note.md b/src/experimental/note.md
index 71ef8603..37085775 100644
--- a/src/experimental/note.md
+++ b/src/experimental/note.md
@@ -23,20 +23,7 @@ Category
 
 Preview
 
-- `sweep`
-- `util/has`
-- `util/dedup`
-- `util/bsearch` 
 - `util/sort` supports `by = "vt"`
-- `shape_circle`
-- `ptf/ptf_rotate`
-- `ptf/ptf_x_twist`
-- `ptf/ptf_y_twist`
-- `ptf/ptf_circle`
-- `ptf/ptf_bend`
-- `ptf/ptf_ring`
-- `ptf/ptf_sphere`
-- `ptf/ptf_torus`
 
 Bugfixes:
 - `helix_extrude`: wrong orientation when CLK
\ No newline at end of file