// ********************************
// ** Computing II Lab session 1 **
// ** Example prog. 1 - decay.c  **
// **      PJM 01/11/1997        **
// ********************************

#include <stdio.h>
#include <math.h>
 
int main(void)
      {
         int time=0;
         int N0=12730,i;         // Initial value of counts = 12730
         float lambda=2.33e-4;   // decay constant     
         int data[21][2];    
         
         for (i=0;i<21;i++)
               {
                data[i][1]=time;      
                data[i][0]=N0*exp(-lambda*time);
                time+=180;
               }       
      }