r.surf.gauss - 	Program to produce a raster map layer of gaussian deviates whose
		mean and standard deviation can be expressed by the user. It
		uses a gaussian random number generator from Press, Flannery,
		Teukolsky and Vetterling (1988) - Numerical Recipes in C.

See also -	r.surf.random

Jo Wood, 24th November, 1991

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Usage:
 r.surf.gauss out=name [mean=value] [sigma=value]

Parameters:
    out   Name of the random surface to be produced
   mean   Distribution mean
          default: 0.0
  sigma   Standard deviation
          default: 1.0
