codepad

Language:

#include <stdio.h>
#include <math.h>
#include <iostream>
#include <cmath>
using namespace std;

int main(void)
{
   int amplitude = 1;
   int frequency = 1;
   int phase = 0;
   int start_time = 0;
   int end_time = 1;
   double f, t;

printf("input the amplitude = %d\n", amplitude);
   printf("input the frequency= %d\n", frequency);
   printf("input the phase in radian= %d\n", phase);
   printf("input the start time= %d\n", start_time);
   printf("input the end time= %d\n", end_time);

//   printf("==============================================================\n");
   cout<<setfill('=');
   cout<<setw(60)<<"="<<endl;
   printf(" x   sin(x) value                 sin(x) graph \n");
   printf("==============================================================\n");
   printf("                    -1-------------------0-------------------1\n");
      cout.precision(2);
      cout.setf(ios::fixed);
      cout.setf(ios::right);
      //cout.setf(ios::showpos);
   for(t = start_time; t <= end_time; t+=0.05)
   {
      f = amplitude*sin(2*M_PI*frequency*t+phase);
//      printf("%.2f  %+.2f %*c\n", t, f,30-(int)(f*20),'*');
      cout<<t<<setw(8)<<f<<setw(30-(int)(f*20))<<"*"<<endl;

}
   printf("==============================================================\n");

return 0;
}

Private [?]

Run code