new week

data/default.typ

@@ -15,8 +15,6 @@
 	// set heading(numbering: "1.1")
 	set par(justify: true)
 
-	// set par(justify: true)
-
 	// equation setup
 	show ref: equate
 	show: equate.with(number-mode: "label", breakable: false)
@@ -34,7 +32,6 @@
 		($..$, $quad$),
 	)
 
-	// shiroa/zeta setup
 	body
 }
 
@@ -45,7 +42,14 @@
 #let lin = math.op("lin")
 #let arccot = math.op("arccot")
 
+// custom operators
+#let sign = math.op("sign")
+#let rot = math.op("rot")
+#let grad = math.op("grad")
+#let div = math.op("div")
+
 // flashcards
 #let flashcard(id, front, back) = {
 	back
 }
+