[GRASS-user] geometric mean with r.mapcalc

vales vale.spanu at tiscali.it
Tue Jun 17 08:27:10 EDT 2008

I tried to calculate the geometric mean with float numbers for six  
raster maps, but the result was a map with only one value: 1.0.
I used the formula: (A*B*C*D*E*F) ^ (1/6),  and also: pow
((A*B*C*D*E*F), (1/6))   but I get always the same result: 1.0.
Could somebody help me?

Thank you 

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