Thread: Please Help~~!

Code:

# include <FPT.h> // finding mean and standard deviation
int main()

{double d[1000],s,x,n,z,m,i,c;

  outS("enter the numbers: ");

 x=inD();n=0;

 if(x<0){outS("no data");outS("\n");exit(0);}

 while(x>=0){

   d[n]=x;

   s=s+x;

   n=n+1;

   x=inD();

 }

 m=s/n;

 outS("This is the Mean: ");outD(m);outS("\n");

 i=0;z=0;

 while(i>n);{z=z+(d[i]-m)*(d[i]-m);i=i+1;}

 outS("This is the Standard Deviation: ");outD(sqrt(z/n));outS("\n");

}

I am trying to find the mean and standard deviation of entered numbers. But the standard deviation part does not work as I expected. Please, please help me. Thanks a lot.

PS: I am new to C language, our professor only taught us how to program by using this kind of language and I couldn't find any reference information by looking around on the Internet. It's kind of different from what people would always use in C. Does anyone know any book or reference site I can go to get a better understanding of this language? Thanks a ton.

Than you for replying.

I got the summation and mean part with no problem.

d[n]=x, is to record the input x as elements of the d[n] array.

I just do not know how to create another loop to sum the array up. Could you please help me with that?

I am sorry, but I do not understand your code...

As mentioned, our professor only taught us how to write the code in a strange fashion.