this is a double-precision IEEE 64bit float." href="../Float.html">Float</a></code></h3><div class="doc"><p></p></div></div></div><h3 class="section">Methods</h3><div class="fields"><div class="field "><a name="backward"></a><h3 class="anchor"><code><span class="label label-meta label-meta-value" title="Used to store default values for fields and function arguments.">@:value({ speed : 1. })</span><a href="#backward"><span class="identifier">backward</span></a>(<span style="white-space:nowrap">speed:<a class