Bring back diff (#44)

laurmaedje · web-flow · commit a8069797a257 · 2025-02-03T18:36:19.000+01:00
diff --git a/src/modules/sym.txt b/src/modules/sym.txt
@@ -448,6 +448,7 @@ infinity ∞
   .incomplete ⧜
   .tie ⧝
 oo ∞
+diff ∂
 partial ∂
 gradient ∇
 nabla ∇
