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Jan 24, 2020 at 3:05 history edited passerby51 CC BY-SA 4.0
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Jan 24, 2020 at 2:41 vote accept passerby51
Jan 24, 2020 at 2:41 history edited passerby51 CC BY-SA 4.0
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Jan 24, 2020 at 2:32 comment added passerby51 All the norms are the $\ell_2$ norm. I have edited the question.
Jan 24, 2020 at 2:27 history edited passerby51 CC BY-SA 4.0
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Jan 24, 2020 at 2:22 comment added passerby51 @AnthonyQuas, yes, the $\ell_2$ norm.
Jan 24, 2020 at 1:11 answer added Iosif Pinelis timeline score: 5
Jan 24, 2020 at 0:47 comment added Anthony Quas What do you mean by $\|x\|$ as opposed to $\|x\|_2$?
Jan 24, 2020 at 0:04 history edited passerby51 CC BY-SA 4.0
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Jan 23, 2020 at 23:57 history asked passerby51 CC BY-SA 4.0