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Mathematica maximize element extraction from list

  1. Jan 22, 2012 #1
    Hi guys,

    I think this is a simple question for mathematica experts.
    How can I maximize the extracted value from a list given a index that has to respect some constrains?

    For example:

    S = {4,2,3,5}

    Maximize[{Extract[S,x], x<= 3, x>=1},{x}]

    I would like 4 is returned instead of this error:
    Extract::psl: "Position specification x in Extract[{4,2,3,5},x] is not an integer or a list of integers."

    Does someone know like solve this?

    Thanks a lot.
  2. jcsd
  3. Jan 22, 2012 #2
    In[1]:= S={4,2,3,5};Max[Take[S,{1,3}]]

    Out[2]= 4
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