Combining Anticlockwise Arrow Above

It marks the character immediately before it.

In a sequence, ⃔ follows its base—the letter or symbol it modifies—and displays above it. It is reusable in technical notation, but the mark alone does not specify one universal operation; the surrounding formula gives it context.

Why does ⃔ move or disappear?

Its position depends on a preceding base and font support.

Enter the base first, then ⃔. If the mark comes first, it may attach to a previous character or appear without a base.

Font support and mark-positioning data affect where it appears; poor support can shift or hide it without changing the character sequence.