title: Is there any way to increase by one a character?
body: <p>when for example you increase a variable with a for you do this</p>
  
  <pre><code>for(k=1; k&lt;21; k++)
  </code></pre>
  
  <p>right? and this means that the for sequence will be repeated until k is 20
  so, is there any way to increase a character variable? like a,b,c,d,e,f...?
  thanks.</p>
  
  <p>the thing is that i want to make a table but with characters and with a character increasing by one.</p>
  
  <p>I havent tried with anything since im a student an i just dont know how to do something like that, or is there any command that could do this?</p>