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What is the meaning of tg( )

  1. Oct 31, 2009 #1
    Dear Physicists,

    I've been given an equation tg(psi_1) = et cetera. I do not know the meaning of the tg function, please could could one tell me its formal name, or how it functions? Thank you
     
  2. jcsd
  3. Oct 31, 2009 #2

    arildno

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    It's a fairly common abbreviation for the tangent function, at least in older books.
     
  4. Oct 31, 2009 #3
    Thank you! It's the first time in fours years of higher education that I've seen it!
     
  5. Oct 31, 2009 #4

    arildno

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    You're welcome! :smile:

    And, to make a pre-emptive strike, lg() is an old convention for the (Briggs') logarithm..:wink:
     
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