title: My function doesn't work. I get this error: define: expected only one expression for the function body, but found 1 extra part
body: <p>I'm new to programming and I'm learning the Scheme language using DrRacket  version 7.5. I'm trying to create a function which takes in a number. The number should then be added to a value that is one number less than the one selected until it reaches 0. I believe I am trying to create an example of recursion.</p>
  
  <pre class="lang-lisp prettyprint-override"><code>(define (add-lesser-numbers num)
    (if(&gt;= num 0))
       (+(num(- num 1)))
        )
  </code></pre>