PNORM

pnorm
The normal distribution function

         p = pnorm(x,m,s)
         
	Input	 x	real
	  	 m	mean (default value is 0)
		 s 	standard deviation (default value is 1)
                (x,m,s can be scalar or matrix with common size)
	Output   p  	normal density function with mean m and standard 
			deviation s, at the value	of x :
			 y=integral form -inf to x of
			exp(-0.5*((x-m)./s)^2)./sqrt(2pi*s)dt