This is rms.c in view mode; [Download] [Up]
#include <math.h>
main(){
double v, total=0;
long int n=0;
while( scanf("%lf", &v) > 0 ){
n++;
total += v*v;
}
printf("%g\n", sqrt(total/n));
}
These are the contents of the former NiCE NeXT User Group NeXTSTEP/OpenStep software archive, currently hosted by Netfuture.ch.