2 comments

    • Daniel Nagase says:

      Right. That’s why it is better to use the inequalities

      *** QuickLaTeX cannot compile formula:
      -|x| \leq x \sin x <leq |x|
      
      *** Error message:
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      Please make sure your server/PHP settings allow HTTP requests to external resources ("allow_url_fopen", etc.)
      These links might help in finding solution:
      http://wordpress.org/extend/plugins/core-control/
      http://wordpress.org/support/topic/an-unexpected-http-error-occurred-during-the-api-request-on-wordpress-3?replies=37

      .

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