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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- NewPage -->
<html lang="en">
<head>
<!-- Generated by javadoc (version 1.7.0_45) on Mon Dec 15 00:47:58 EST 2014 -->
<title>P2</title>
<meta name="date" content="2014-12-15">
<link rel="stylesheet" type="text/css" href="../stylesheet.css" title="Style">
</head>
<body>
<script type="text/javascript"><!--
if (location.href.indexOf('is-external=true') == -1) {
parent.document.title="P2";
}
//-->
</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="topNav"><a name="navbar_top">
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</a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow">
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<ul class="navList" title="Navigation">
<li><a href="../overview-summary.html">Overview</a></li>
<li><a href="package-summary.html">Package</a></li>
<li class="navBarCell1Rev">Class</li>
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<li><a href="../deprecated-list.html">Deprecated</a></li>
<li><a href="../index-all.html">Index</a></li>
<li><a href="../help-doc.html">Help</a></li>
</ul>
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<div class="subNav">
<ul class="navList">
<li><a href="../fj/P1.html" title="class in fj"><span class="strong">Prev Class</span></a></li>
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<ul class="subNavList">
<li>Summary: </li>
<li>Nested | </li>
<li>Field | </li>
<li><a href="#constructor_summary">Constr</a> | </li>
<li><a href="#method_summary">Method</a></li>
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<li>Detail: </li>
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<!-- ======== START OF CLASS DATA ======== -->
<div class="header">
<div class="subTitle">fj</div>
<h2 title="Class P2" class="title">Class P2<A,B></h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li>fj.P2<A,B></li>
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<pre>public abstract class <span class="strong">P2<A,B></span>
extends java.lang.Object</pre>
<div class="block">A product-2.</div>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<h3>Constructor Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><strong><a href="../fj/P2.html#P2()">P2</a></strong>()</code> </td>
</tr>
</table>
</li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
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<h3>Method Summary</h3>
<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span>Methods</span><span class="tabEnd"> </span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <A,B> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,A></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#__1()">__1</a></strong>()</code>
<div class="block">Returns a function that returns the first element of a product.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <A,B> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,B></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#__2()">__2</a></strong>()</code>
<div class="block">Returns a function that returns the second element of a product.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../fj/P1.html" title="class in fj">P1</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#_1_()">_1_</a></strong>()</code>
<div class="block">Returns the 1-product projection over the first element.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract <a href="../fj/P2.html" title="type parameter in P2">A</a></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#_1()">_1</a></strong>()</code>
<div class="block">Access the first element of the product.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../fj/P1.html" title="class in fj">P1</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#_2_()">_2_</a></strong>()</code>
<div class="block">Returns the 1-product projection over the second element.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>abstract <a href="../fj/P2.html" title="type parameter in P2">B</a></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#_2()">_2</a></strong>()</code>
<div class="block">Access the second element of the product.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><C> <a href="../fj/P2.html" title="class in fj">P2</a><C,<a href="../fj/P2.html" title="type parameter in P2">B</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#cobind(fj.F)">cobind</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,C> k)</code>
<div class="block">Duplicates this product on the first element, and maps the given function across the duplicate (Comonad pattern).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,<a href="../fj/P2.html" title="type parameter in P2">B</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#duplicate()">duplicate</a></strong>()</code>
<div class="block">Duplicates this product into the first element (Comonad pattern).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <B,C,D> <a href="../fj/P2.html" title="class in fj">P2</a><C,D></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#fanout(fj.F, fj.F, B)">fanout</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><B,C> f,
<a href="../fj/F.html" title="class in fj">F</a><B,D> g,
B b)</code>
<div class="block">Sends the given input value to both argument functions and combines their output.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><C> <a href="../fj/P2.html" title="class in fj">P2</a><C,<a href="../fj/P2.html" title="type parameter in P2">B</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#inject(C)">inject</a></strong>(C c)</code>
<div class="block">Replaces the first element of this product with the given value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <A,B> <a href="../fj/P2.html" title="class in fj">P2</a><B,B></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#map(fj.F, fj.P2)">map</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><A,B> f,
<a href="../fj/P2.html" title="class in fj">P2</a><A,A> p)</code>
<div class="block">Maps the given function across both the elements of the given product.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <A,B,X> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><X,B>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#map1_(fj.F)">map1_</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><A,X> f)</code>
<div class="block">Promotes a function so that it maps the first element of a product.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><X> <a href="../fj/P2.html" title="class in fj">P2</a><X,<a href="../fj/P2.html" title="type parameter in P2">B</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#map1(fj.F)">map1</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,X> f)</code>
<div class="block">Map the first element of the product.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <A,B,X> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><A,X>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#map2_(fj.F)">map2_</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><B,X> f)</code>
<div class="block">Promotes a function so that it maps the second element of a product.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><X> <a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,X></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#map2(fj.F)">map2</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>,X> f)</code>
<div class="block">Map the second element of the product.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#memo()">memo</a></strong>()</code>
<div class="block">Provides a memoising P2 that remembers its values.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><C> <a href="../fj/data/List.html" title="class in fj.data">List</a><C></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#sequenceW(fj.data.List)">sequenceW</a></strong>(<a href="../fj/data/List.html" title="class in fj.data">List</a><<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,C>> fs)</code>
<div class="block">Applies a list of comonadic functions to this product, returning a list of values.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><C> <a href="../fj/data/Stream.html" title="class in fj.data">Stream</a><C></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#sequenceW(fj.data.Stream)">sequenceW</a></strong>(<a href="../fj/data/Stream.html" title="class in fj.data">Stream</a><<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,C>> fs)</code>
<div class="block">Applies a stream of comonadic functions to this product, returning a stream of values.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <A,B,C,D> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><C,D>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#split_(fj.F, fj.F)">split_</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><A,C> f,
<a href="../fj/F.html" title="class in fj">F</a><B,D> g)</code>
<div class="block">A first-class version of the split function.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><C,D> <a href="../fj/P2.html" title="class in fj">P2</a><C,D></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#split(fj.F, fj.F)">split</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,C> f,
<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>,D> g)</code>
<div class="block">Split this product between two argument functions and combine their output.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <A,B> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><B,A>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#swap_()">swap_</a></strong>()</code>
<div class="block">Returns a curried form of <a href="../fj/P2.html#swap()"><code>swap()</code></a>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>,<a href="../fj/P2.html" title="type parameter in P2">A</a>></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#swap()">swap</a></strong>()</code>
<div class="block">Swaps the elements around in this product.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <A,B,C> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,C></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#tuple(fj.F)">tuple</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><A,<a href="../fj/F.html" title="class in fj">F</a><B,C>> f)</code>
<div class="block">Transforms a curried function of arity-2 to a function of a product-2</div>
</td>
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<td class="colFirst"><code>static <A,B,C> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,C></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#tuple(fj.F2)">tuple</a></strong>(<a href="../fj/F2.html" title="class in fj">F2</a><A,B,C> f)</code>
<div class="block">Transforms an uncurried function of arity-2 to a function of a product-2</div>
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<td class="colFirst"><code>static <A,B,C> <a href="../fj/F2.html" title="class in fj">F2</a><A,B,C></code></td>
<td class="colLast"><code><strong><a href="../fj/P2.html#untuple(fj.F)">untuple</a></strong>(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,C> f)</code>
<div class="block">Transforms a function of a product-2 to an uncurried function or arity-2.</div>
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<h3>Methods inherited from class java.lang.Object</h3>
<code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li>
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<pre>public P2()</pre>
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<pre>public abstract <a href="../fj/P2.html" title="type parameter in P2">A</a> _1()</pre>
<div class="block">Access the first element of the product.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The first element of the product.</dd></dl>
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<pre>public abstract <a href="../fj/P2.html" title="type parameter in P2">B</a> _2()</pre>
<div class="block">Access the second element of the product.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>The second element of the product.</dd></dl>
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<pre>public final <a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>,<a href="../fj/P2.html" title="type parameter in P2">A</a>> swap()</pre>
<div class="block">Swaps the elements around in this product.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>A new product-2 with the elements swapped.</dd></dl>
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<pre>public final <X> <a href="../fj/P2.html" title="class in fj">P2</a><X,<a href="../fj/P2.html" title="type parameter in P2">B</a>> map1(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,X> f)</pre>
<div class="block">Map the first element of the product.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - The function to map with.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A product with the given function applied.</dd></dl>
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<pre>public final <X> <a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,X> map2(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>,X> f)</pre>
<div class="block">Map the second element of the product.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - The function to map with.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A product with the given function applied.</dd></dl>
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<h4>split</h4>
<pre>public final <C,D> <a href="../fj/P2.html" title="class in fj">P2</a><C,D> split(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,C> f,
<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>,D> g)</pre>
<div class="block">Split this product between two argument functions and combine their output.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - A function that will map the first element of this product.</dd><dd><code>g</code> - A function that will map the second element of this product.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A new product with the first function applied to the second element
and the second function applied to the second element.</dd></dl>
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<pre>public final <C> <a href="../fj/P2.html" title="class in fj">P2</a><C,<a href="../fj/P2.html" title="type parameter in P2">B</a>> cobind(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,C> k)</pre>
<div class="block">Duplicates this product on the first element, and maps the given function across the duplicate (Comonad pattern).</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>k</code> - A function to map over the duplicated product.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A new product with the result of the given function applied to this product as the first element,
and with the second element intact.</dd></dl>
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<pre>public final <a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,<a href="../fj/P2.html" title="type parameter in P2">B</a>> duplicate()</pre>
<div class="block">Duplicates this product into the first element (Comonad pattern).</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>A new product with this product in its first element and with the second element intact.</dd></dl>
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<pre>public final <C> <a href="../fj/P2.html" title="class in fj">P2</a><C,<a href="../fj/P2.html" title="type parameter in P2">B</a>> inject(C c)</pre>
<div class="block">Replaces the first element of this product with the given value.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>c</code> - The value with which to replace the first element of this product.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A new product with the first element replaced with the given value.</dd></dl>
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<pre>public final <C> <a href="../fj/data/List.html" title="class in fj.data">List</a><C> sequenceW(<a href="../fj/data/List.html" title="class in fj.data">List</a><<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,C>> fs)</pre>
<div class="block">Applies a list of comonadic functions to this product, returning a list of values.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>fs</code> - A list of functions to apply to this product.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A list of the results of applying the given list of functions to this product.</dd></dl>
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<pre>public final <C> <a href="../fj/data/Stream.html" title="class in fj.data">Stream</a><C> sequenceW(<a href="../fj/data/Stream.html" title="class in fj.data">Stream</a><<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>>,C>> fs)</pre>
<div class="block">Applies a stream of comonadic functions to this product, returning a stream of values.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>fs</code> - A stream of functions to apply to this product.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A stream of the results of applying the given stream of functions to this product.</dd></dl>
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<pre>public final <a href="../fj/P1.html" title="class in fj">P1</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>> _1_()</pre>
<div class="block">Returns the 1-product projection over the first element.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the 1-product projection over the first element.</dd></dl>
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<pre>public final <a href="../fj/P1.html" title="class in fj">P1</a><<a href="../fj/P2.html" title="type parameter in P2">B</a>> _2_()</pre>
<div class="block">Returns the 1-product projection over the second element.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>the 1-product projection over the second element.</dd></dl>
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<pre>public final <a href="../fj/P2.html" title="class in fj">P2</a><<a href="../fj/P2.html" title="type parameter in P2">A</a>,<a href="../fj/P2.html" title="type parameter in P2">B</a>> memo()</pre>
<div class="block">Provides a memoising P2 that remembers its values.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>A P2 that calls this P2 once for any given element and remembers the value for subsequent calls.</dd></dl>
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<pre>public static <A,B,C,D> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><C,D>> split_(<a href="../fj/F.html" title="class in fj">F</a><A,C> f,
<a href="../fj/F.html" title="class in fj">F</a><B,D> g)</pre>
<div class="block">A first-class version of the split function.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - A function that will map the first element of the given product.</dd><dd><code>g</code> - A function that will map the second element of the given product.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A function that splits a given product between the two given functions and combines their output.</dd></dl>
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<pre>public static <A,B,X> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><X,B>> map1_(<a href="../fj/F.html" title="class in fj">F</a><A,X> f)</pre>
<div class="block">Promotes a function so that it maps the first element of a product.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - The function to promote.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The given function, promoted to map the first element of products.</dd></dl>
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<pre>public static <A,B,X> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><A,X>> map2_(<a href="../fj/F.html" title="class in fj">F</a><B,X> f)</pre>
<div class="block">Promotes a function so that it maps the second element of a product.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - The function to promote.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The given function, promoted to map the second element of products.</dd></dl>
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<pre>public static <B,C,D> <a href="../fj/P2.html" title="class in fj">P2</a><C,D> fanout(<a href="../fj/F.html" title="class in fj">F</a><B,C> f,
<a href="../fj/F.html" title="class in fj">F</a><B,D> g,
B b)</pre>
<div class="block">Sends the given input value to both argument functions and combines their output.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - A function to receive an input value.</dd><dd><code>g</code> - A function to receive an input value.</dd><dd><code>b</code> - An input value to send to both functions.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The product of the two functions applied to the input value.</dd></dl>
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<pre>public static <A,B> <a href="../fj/P2.html" title="class in fj">P2</a><B,B> map(<a href="../fj/F.html" title="class in fj">F</a><A,B> f,
<a href="../fj/P2.html" title="class in fj">P2</a><A,A> p)</pre>
<div class="block">Maps the given function across both the elements of the given product.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - A function to map over a product.</dd><dd><code>p</code> - A product over which to map.</dd>
<dt><span class="strong">Returns:</span></dt><dd>A new product with the given function applied to both elements.</dd></dl>
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<pre>public static <A,B> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,<a href="../fj/P2.html" title="class in fj">P2</a><B,A>> swap_()</pre>
<div class="block">Returns a curried form of <a href="../fj/P2.html#swap()"><code>swap()</code></a>.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>A curried form of <a href="../fj/P2.html#swap()"><code>swap()</code></a>.</dd></dl>
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<pre>public static <A,B> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,A> __1()</pre>
<div class="block">Returns a function that returns the first element of a product.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>A function that returns the first element of a product.</dd></dl>
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<pre>public static <A,B> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,B> __2()</pre>
<div class="block">Returns a function that returns the second element of a product.</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>A function that returns the second element of a product.</dd></dl>
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<pre>public static <A,B,C> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,C> tuple(<a href="../fj/F.html" title="class in fj">F</a><A,<a href="../fj/F.html" title="class in fj">F</a><B,C>> f)</pre>
<div class="block">Transforms a curried function of arity-2 to a function of a product-2</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - a curried function of arity-2 to transform into a function of a product-2</dd>
<dt><span class="strong">Returns:</span></dt><dd>The function, transformed to operate on on a product-2</dd></dl>
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<pre>public static <A,B,C> <a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,C> tuple(<a href="../fj/F2.html" title="class in fj">F2</a><A,B,C> f)</pre>
<div class="block">Transforms an uncurried function of arity-2 to a function of a product-2</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - an uncurried function of arity-2 to transform into a function of a product-2</dd>
<dt><span class="strong">Returns:</span></dt><dd>The function, transformed to operate on on a product-2</dd></dl>
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<pre>public static <A,B,C> <a href="../fj/F2.html" title="class in fj">F2</a><A,B,C> untuple(<a href="../fj/F.html" title="class in fj">F</a><<a href="../fj/P2.html" title="class in fj">P2</a><A,B>,C> f)</pre>
<div class="block">Transforms a function of a product-2 to an uncurried function or arity-2.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - A function of a product-2 to transform into an uncurried function.</dd>
<dt><span class="strong">Returns:</span></dt><dd>The function, transformed to an uncurried function of arity-2.</dd></dl>
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