text: // Exercise 7 from chapter 4
  // This program evaluates an expression and shows the result at the terminal in exponential form/scientific notation.
  
  #include<stdio.h>
  
  int main( void )
  {
  
    double x = 0;
  
    x = ( 3.31e8 * 2.01e7 ) / ( 7.16e6 + 2.01e8 );
  
    printf( "The result is %e.\n", x );
  
    return 0;
  
  }
  