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Homework Help: Mathematica - turning two lists into an array

  1. Mar 9, 2009 #1

    I need to turn two lists in the form {a1,a2,a3...} {b1,b2,b3...}
    into {{a1,b1},{a2,b2},{a3,b3}..}

    I've looked everywhere on the Wolfram website and the best i found was:

    Riffle[{list1},{list2}] which gives me {a1,b1,a2,b2,a3,b3}

    does anyone know the function to use?

  2. jcsd
  3. Mar 27, 2011 #2
    Maybe this:
    Transpose[{{a1, a2, a3}, {b1, b2, b3}}]
  4. Mar 27, 2011 #3


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    Science Advisor
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    Gold Member

    Equivalently, {{a1, a2, a3}, {b1, b2, b3}}TR. (The transpose symbol comes from hitting Esc, tr, Esc.)
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