Characteristic function (convex analysis): Revision history

3 August 2021

• curprev 13:0013:00, 3 August 2021 192.124.26.56 talk 2,066 bytes −7 No edit summary undo
• curprev 12:5312:53, 3 August 2021 192.124.26.56 talk 2,073 bytes +148 No edit summary undo

27 August 2020

• curprev 08:5108:51, 27 August 2020 Tea2min talk contribs 1,925 bytes +18 Undid revision 975061763 by 109.97.67.140 (talk): While not exactly wrong I find this change confusing. Of course, the *image* of the characteristic function of a (nonempty) set is {0, ∞}. However, the *codomain* of the characteristic function of a set is usually defined to be the extended real number line, ℝ∪{∞}. undo Tag: Undo

26 August 2020

• curprev 14:3014:30, 26 August 2020 109.97.67.140 talk 1,907 bytes −18 →Definition: Clarified the range of values. undo Tags: Mobile edit Mobile web edit

31 May 2017

• curprev 14:5914:59, 31 May 2017 Warichnich talk contribs 1,925 bytes +34 Increasing consistency since the relation between characteristic and indicator function works with this definition of 0*\infty, not with the old one. undo

5 May 2012

• curprev 23:4023:40, 5 May 2012 Helpful Pixie Bot talk contribs m 1,891 bytes +4 ISBNs (Build KC) undo

20 October 2011

• curprev 17:0217:02, 20 October 2011 Zfeinst talk contribs 1,887 bytes −1 no footnotes tag undo
• curprev 17:0217:02, 20 October 2011 Zfeinst talk contribs m 1,888 bytes +49 →Bibliography: improve citation undo

8 October 2011

• curprev 13:5613:56, 8 October 2011 Zfeinst talk contribs m 1,839 bytes 0 No edit summary undo

22 February 2010

• curprev 21:4621:46, 22 February 2010 Kiefer.Wolfowitz talk contribs 1,839 bytes +227 →Relationship with the indicator function undo

18 November 2007

• curprev 23:5323:53, 18 November 2007 Koavf talk contribs 1,612 bytes +36 {{unreferenced|date=November 2007}} undo

7 October 2006

• curprev 15:0415:04, 7 October 2006 Sullivan.t.j talk contribs 1,576 bytes +1,576 No edit summary