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Name of function

  1. Aug 31, 2006 #1
    For example, the function
    [tex]f\left( x \right) = \left\{ {\begin{array}{*{20}c}
    {1:x > 0} \\
    {0:x = 0} \\
    { - 1:x < 0} \\

    \end{array} } \right.[/tex]
    is known as the sign function, usually represented as sgn x.

    However, is there a specific name for the function
    [tex]f\left( x \right) = \left\{ {\begin{array}{*{20}c}
    {1:x > 0} \\
    { - 1:x \leqslant 0} \\

    \end{array} } \right. [/tex]
    ?
     
    Last edited: Aug 31, 2006
  2. jcsd
  3. Aug 31, 2006 #2

    quasar987

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  4. Aug 31, 2006 #3
    Well, in that case, my function is simply 2H0(x)-1
    :smile:
     
    Last edited: Aug 31, 2006
  5. Aug 31, 2006 #4

    mathwonk

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    the name of the function is yahweh.
     
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