update note

src/experimental/note.md

@@ -1,37 +1,8 @@
 to_do:
 
 
+Triangle
 
-dotSCAD 3.0 Dev
-
-- `function_grapher`: delete `slicing` parameter. Improve `"LINES"`、`"HULL_LINES"` performance.
-- `hull_polyline3d`: Rename the parameter `thickness` to `diameter`.
-- `line3d`: Rename the parameter `thickness` to `diameter`.
-- `polyline3d`: Rename the parameter `thickness` to `diameter`.
-- `util/sort`: `by` accepts a function literal.
-- `util/bsearch`: only supports `sorted` and `target` parameters. I view it as a new function.
-- `util/dedup`: delete `sorted` parameter. add the `eq`,`hash` and `number_of_buckets` parameters.
-- `util/zip`: add the `combine` parameter.
-- `lines_intersection` supports 3D
-- `vx_union`, `vx_circle`, `vx_bezier`, `vx_polygon` performance improved.
-
-New modules/functions
-
-- `angle_between`
-- `util/degrees`
-- `util/radians`
-- `util/polar_coordinate`
-- `util/spherical_coordinate`
-- `util/every`
-- `util/some`
-- `util/swap`
-- `util/shuffle`
-- `util/find_index`
-- `maze/mz_theta_cells`
-- `maze/mz_theta_get`
-- `util/set/hashset` ...
-- `util/map/hashmap` ...
-
-- delete `m_cumulate`
-- delete `trianglate`, use `tri_ear_clipping`?
-- `turtle/turtle2d` and `turtle/turtle3d` used internally.
+- tri_circumcircle
+- tri_ear_clipping
+- tri_delaunay