Can't understand the meaning of some symbols

  1. 1. The problem statement, all variables and given/known data
    This is an extract from elements of mechanics by giovanni.
    I'[m unable to understand the meaning of [tex]R^d[/tex] and [tex]C^\infty[/tex]

    2. Relevant equations

    3. The attempt at a solution
    Last edited: May 20, 2011
  2. jcsd
  3. tiny-tim

    tiny-tim 26,016
    Science Advisor
    Homework Helper

    hi shakgoku! :smile:

    Rd is the same as Rn

    i assume "d" stands for "dimension" :biggrin:

    and C is the space of functions which are differentiable "infinitely many" times
  4. Hey tiny-tim!

    Thank you , now everything in the page makes sense to me! :)
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