Syntax:
GRAND {(mu:Number {, sigma:Number})}
Returns a random number with normal (Gaussian) distribution[1],
with mean value mu
and standard deviation sigma.
If the optional parameter mu is omitted, Fireworkz assumes a mean of zero.
If the optional parameter sigma is omitted, Fireworkz assumes a standard deviation of one.
Revisions:
Starting with 2.00, this function will now recalculate automatically on reload.