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Homework Help: Vectors Indexes? x y z?

  1. Aug 29, 2010 #1
    1. The problem statement, all variables and given/known data

    for direction 1 and 2, find the indexes x y z for both

    2. Relevant equations


    3. The attempt at a solution

    direction 1 is 0,0.25,0.3 ?
    direction 2 is 0,-0.3,0.25 ?

    Attached Files:

  2. jcsd
  3. Aug 29, 2010 #2
    What is the definition of an index?
  4. Aug 29, 2010 #3
    the direction [x,y,z]
  5. Aug 29, 2010 #4
    Okay, I see the pic now. You are starting from the origin. Just calculate where the point is in the table.
  6. Aug 29, 2010 #5
    I'm not quite really sure if I get this right since it is in 3D and is very confusing.

    Now, I have Direction 1 [0, 0.25, 0.3]

    Direction 2 [0.4, 0.25, -0.3]

    Would you please verify if what I have looks good?

    Thank you in advance
  7. Aug 29, 2010 #6
    Yeah, now it looks good. If you need to justify the distances, ue pythagoras theorem.
  8. Aug 29, 2010 #7
    Alright, thank you very much for your clarifications.
  9. Aug 30, 2010 #8


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    Science Advisor

    The standard English term is "x, y, z components" not "indices". In "British English", the letters "x", "y", "z" in, say, [itex]u_x[/itex], [itex]u_y[/itex], or [itex]u_z[/itex] would be "indices" (in "American English", "subscripts").
  10. Sep 25, 2010 #9
    hi,can anybody tell how to find intercept with axis for miller indices?
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