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C/C++ Source or Header  |  2000-09-27  |  334 b   |  18 lines
  1. #include <iostream>
  2. #include <cmath>
  3. using namespace std;
  4.  
  5. int main(int argc, char *argv[])
  6. {
  7.    if (argc>1) {
  8.       double val = atof(argv[1]);
  9.       if (val>0) {
  10.          cout << "The log of "
  11.               << val 
  12.               << " is "
  13.               << log(val)
  14.               << endl;
  15.       }
  16.    }
  17.    return 0;
  18. }