// 1st unit conversion example
import nsrunit;
unit conversion on;
math example6a {
  real dist1 m, dist2 m;// dist1 and dist2 in meters
  real dist3 cm;        // dist3 in centimeters
  dist1 = 3;
  dist2 = 2;     
  dist3 = dist1 + dist2; 
}