C/Math/Log

#include <stdio.h>
#include <math.h>
int main ()
{
  double param, result;
  param = 100.0;
  result = log10 (param);
  printf ("log10(%lf) = %lf\n", param, result );
  return 0;
}

#include <stdio.h>
#include <math.h>
int main ()
{
  double p, result;
  float param = 6.5;
  
  
  result = log (param);
  
  printf ("ln(%lf) = %lf\n", param, result );
  
  return 0;
}

#include <math.h>
#include <stdio.h>
int main(void)
{
  double val = 1.0;
  do {
    printf("%f %f\n", val, log(val));
    val++;
  } while (val<11.0);
  return 0;
}

#include <math.h>
#include <stdio.h>
int main(void)
{
  double val = 1.0;
  do {
    printf("%f %f\n", val, log10(val));
    val++;
  } while (val<11.0);
  return 0;
}