Angle difference between two bearings: Difference between revisions

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@@ Line 911: / Line 911: @@
 =LAMBDA(ab,
     LET(
-        a, INDEX(ab, 1),
+        sinab, SIN(ab),
-        b, INDEX(ab, 2),
+        cosab, COS(ab),
-        ax, SIN(a),
-        ay, COS(a),
+        ax, INDEX(sinab, 1),
-        bx, SIN(b),
+        bx, INDEX(sinab, 2),
-        by, COS(b),
+        ay, INDEX(cosab, 1),
+        by, INDEX(cosab, 2),
         rem, "Sign * dot product",