[R] norm of complex number

[Spencer Graves]

      "abs" also works (in R 1.8.1 under Windows 2000), as we see just 
by trying it: 

      abs(1+1i) = 1.414214

      hope this helps.  spencer graves

Prof Brian Ripley wrote:

>That's called the modulus, and computed by function Mod().
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>On Mon, 15 Mar 2004, Frank Gerrit Zoellner wrote:
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>>I want o calc the norm of a complex number ( |c| where c is complex).
>>Does the function abs() this ?
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