S=[];
for (i=0;i<20;i++){
		for (j=0;j<20;j++){
		q=(i-10)*p*e*d/10;
		r=(j-10)*p*e*d/10;
		if (Math.exp(-(q*q+r*r)/(2*theV))/(2*Math.PI*theV)>0.01) {
			S.push([q,r,Math.exp(-(q*q+r*r)/(2*theV))/(2*Math.PI*theV)]);
			}
		}
		S.push([NaN,NaN,NaN]);
	};
S