I want to put a "~" above x, just like \hat x but replacing \hat with \sim.

How to do that?


I think you're after \tilde x.

  • 12
    Or \widetilde if the character is (or are) long. Jun 10 '11 at 10:43
  • @Andrew Yes, good remark!
    – chl
    Jun 10 '11 at 10:44

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