Thin lens: Revision history

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28 April 2014

6 February 2014

10 January 2014

  • curprev 07:0407:04, 10 January 2014en>Srleffler 3,381 bytes +3,381 →‎Focal length: Style: punctuate equations as if they were noun phrases embedded within the surrounding sentences. (Puncutate it the way you would read it aloud.)

21 May 2012