Normal Distribution!!!!

[Alessandro Perrone]

Hi all
 I am trying to use a NormalDistribution for my simulation but without
success.
Here it is the method
-alex {
int result;

result =  [NormalDistribution getSampleWithMean: 0 withVariance: 0.5];
printf (" Normal Value ---> %d ", result);
return self;

}

and Here it is what Gdb says

Starting program: /home/laurea/alex/alex/examples/Swarm/rand_alex 
error: NormalDist (class)
NormalDist does not recognize getSampleWithMean:withVariance:

Program received signal SIGABRT, Aborted.
0x401daf61 in __kill ()

What's wrong?
Thank in advance for the help.
                                ALEX



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