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Homework Help: Quick Question on Vector Notation

  1. Feb 8, 2010 #1
    I have a quick question to ask you guys. In the first problem found http://whites.sdsmt.edu/classes/ee382/homework/382Homework4.pdf" [Broken], does the vertical line with the subscript x = 0 mean that the x-component of the vector is always 0? If so, then I could just remove the x-component from the vector so it would become [tex]\vec{\boldsymbol{D}}_{1} = \hat{\boldsymbol{a}}_{y}\beta + \hat{\boldsymbol{a}}_{z}\gamma[/tex] right? I know this is a really simple question, but since I haven't seen this notation used in a while, I wanted to make sure I knew what it meant.
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Feb 8, 2010 #2
    no i dont think so .. it means that equation is equal to the one written when x=0 (at a point x=0) , you cant say that the x-component is zero! If that component for example equal a constant not including x ifself or any combination of other variables , does that necessary lead to a zero of the x-component? ..

    Im not going to say im 100% sure, but that what I think .. I hope that other members reply and comment on that part ..
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