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<head><title>Thing // Function -- apply a function</title>
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<div><h1>Thing // Function -- apply a function</h1>
<div class="single"><h2>Synopsis</h2>
<ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>x // f</tt><br/><tt>f \\ x</tt></div>
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<li><span>Operator: <a href="__sl_sl.html" title="a binary operator, usually used for quotient">//</a></span></li>
<li><div class="single">Inputs:<ul><li><span><tt>x</tt>, <span>a <a href="___Thing.html">thing</a></span></span></li>
<li><span><tt>f</tt>, <span>a <a href="___Function.html">function</a></span>, <span>a <a href="___Command.html">command</a></span>, or <span>a <a href="___Self__Initializing__Type.html">self initializing type</a></span></span></li>
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<li><div class="single">Outputs:<ul><li><span><span>a <a href="___Visible__List.html">visible list</a></span>, the result of applying <tt>f</tt> to <tt>x</tt>, i.e., <tt>f x</tt></span></li>
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<div class="single"><h2>Description</h2>
<div><p>The parsing precedence of the operators <tt>//</tt> and <tt>\\</tt> is rather low, which makes them useful for avoiding parentheses. See <a href="_precedence_spof_spoperators.html" title="">precedence of operators</a>.</p>
<table class="examples"><tr><td><pre>i1 : toList \\ sin \ ( 1 .. 5 )
o1 = {.841471, .909297, .14112, -.756802, -.958924}
o1 : List</pre>
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<tr><td><pre>i2 : ( 1 .. 5 ) / sin // toList
o2 = {.841471, .909297, .14112, -.756802, -.958924}
o2 : List</pre>
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<tr><td><pre>i3 : (x -> (x,x)) \ (a,b,c,d)
o3 = ((a, a), (b, b), (c, c), (d, d))
o3 : Sequence</pre>
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<tr><td><pre>i4 : splice \\ (x -> (x,x)) \ (a,b,c,d)
o4 = (a, a, b, b, c, c, d, d)
o4 : Sequence</pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="___Visible__List_sp_sl_sp__Function.html" title="apply a function to elements of a list">VisibleList / Function</a> -- apply a function to elements of a list</span></li>
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