title: Regex to match all alphanumeric and math operators
body: <p>I have the simple regex @"[a-zA-Z]" to match all characters a-z in a string but I also need math operators (*, /, +, -). I was reading over the documentation on msdn but I got lost relatively fast due to the math operators being used as other tokens in the regex</p>
  
  <p>This solution works:</p>
  
  <pre><code> @"[A-Za-z\*\+\-\/]"
  </code></pre>
  
  <p>Thanks for the help and resources everyone.</p>