A user with 63 edits. Account created on 1 May 2013.
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27 June 2019

31 October 2017

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16 October 2016

26 September 2016

  • 05:52 05:52, 26 September 2016 diff hist +196 Arc length/* Definition for a smooth curve * The previous definition did not state clearly that N is Not a fixed number, this may cause confuse for people without too many experiences in mathematics.

25 September 2016

16 August 2016

3 August 2016

31 July 2016

13 April 2016

23 March 2016

3 March 2016

29 February 2016

28 February 2016

14 February 2016

13 February 2016

12 February 2016

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