title: Appending to Vector
body: <p>I'm having trouble appending to an empty vector in Julia.</p>
  
  <pre><code>v = Int64[]
  append!(v,1)
  append(v,1)
  </code></pre>
  
  <p>The append! gives the error</p>
  
  <pre><code>ERROR: `Variable` has no method matching Variable(::Int64, ::Int64, ::Int64, ::Int64)
  </code></pre>
  
  <p>And append gives the error</p>
  
  <pre><code>ERROR: append not defined
  </code></pre>
  
  <p>This is probably a basic mistake on my part, but I can't figure out why neither command is working.</p>