title: Difference between 1:10 and 0.1:1.0
body: <p>I was wondering why R sees <code>(1:10)</code> as an vector counting from 1 to 10 
  And <code>(0.1:1.0)</code> as 0.1?</p>
  
  <p>Should i define the steps from 0.05 by myself? or is there a trick to do this?</p>