normally distributed random number with mean=0 and sd=1, nSeed > 0 to set random seed (returns 0)
double grnd( int nSeed = 0 )
A normally distributed random number.
// The example displays 10 normally distributes random numbers with mean=0 and
// standard deviation = 1.
for (int ii = 0; ii < 10; ii++)
double rr = grnd();
out_double("value = ", rr);
On every call it generates a normally distributed random double value with mean = 0. and
standard deviation = 1.