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when toggle format what by license comment
Jan 17, 2014 at 21:50 answer added answer_bot timeline score: 2
Jan 17, 2014 at 5:34 history edited Mikhail Bondarko CC BY-SA 3.0
edited body
Jan 17, 2014 at 1:24 comment added Mahdi Majidi-Zolbanin The $S$ should be $R$, I think.
Jan 16, 2014 at 22:24 history asked Mikhail Bondarko CC BY-SA 3.0