h4>
		<div class="content">O(1), amortized. Returns option deque of the elements trailing the first element. 



      
    </div>
	</div>
	<div id="tryLookup``1" class="method">
		<h4><span title="Microsoft.FSharp.Core.FSharpOption<a>">FSharpOption&lt;a&gt;</span> <strong>tryLookup&lt;a&gt;</strong>(<span title="System.int">int</span> i, <a href="../FSharpx.DataStructures/BankersDeque`1.htm">BankersDeque&lt;a&gt;</a> q)</h4>
		<div class="content">O(n), worst case. Returns option element by index. 



    