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Numbering equations in Latex

  1. Aug 8, 2009 #1
    Hi,
    I was wondering how to number a set of equations (in Latex) under the same number but differentiate with a letter appeneded at the end!
    i.e,
    aX + bY = k -------(1.1a)
    cX + dY = l -------(1.1b)
    rX + sY = m -------(1.1c)
    like wise.
    I can get them numbered as (1.1),(1.2),(1.3) etc. But don't know how to get the above format.

    Thanks,
    Madara
     
  2. jcsd
  3. Aug 8, 2009 #2

    cristo

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    Staff Emeritus
    Science Advisor

    Use the "subequations" environment.
     
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