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<li class="navelem"><a class="el" href="namespace_quant_lib.html">QuantLib</a></li><li class="navelem"><a class="el" href="class_quant_lib_1_1_backwardflat_linear_interpolation.html">BackwardflatLinearInterpolation</a></li>  </ul>
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<a href="#pub-methods">Public Member Functions</a> &#124;
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<div class="title">BackwardflatLinearInterpolation Class Reference</div>  </div>
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<p><code>#include &lt;ql/math/interpolations/backwardflatlinearinterpolation.hpp&gt;</code></p>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a65f64b104a39fe15265e46f3fc95d78a"><td class="memTemplParams" colspan="2">template&lt;class I1 , class I2 , class M &gt; </td></tr>
<tr class="memitem:a65f64b104a39fe15265e46f3fc95d78a"><td class="memTemplItemLeft" align="right" valign="top">&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="class_quant_lib_1_1_backwardflat_linear_interpolation.html#a65f64b104a39fe15265e46f3fc95d78a">BackwardflatLinearInterpolation</a> (const I1 &amp;xBegin, const I1 &amp;xEnd, const I2 &amp;yBegin, const I2 &amp;yEnd, const M &amp;zData)</td></tr>
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<tr class="inherit_header pub_methods_class_quant_lib_1_1_interpolation2_d"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_quant_lib_1_1_interpolation2_d')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="class_quant_lib_1_1_interpolation2_d.html">Interpolation2D</a></td></tr>
<tr class="memitem:aecd2aeef72c3ec553d8bac3e102a99ca inherit pub_methods_class_quant_lib_1_1_interpolation2_d"><td class="memItemLeft" align="right" valign="top"><a id="aecd2aeef72c3ec553d8bac3e102a99ca"></a>
<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a>&#160;</td><td class="memItemRight" valign="bottom"><b>operator()</b> (<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> x, <a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> y, bool allowExtrapolation=false) const</td></tr>
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<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a>&#160;</td><td class="memItemRight" valign="bottom"><b>xMin</b> () const</td></tr>
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<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a>&#160;</td><td class="memItemRight" valign="bottom"><b>xMax</b> () const</td></tr>
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std::vector&lt; <a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>xValues</b> () const</td></tr>
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<a class="el" href="group__types.html#gaf38bdb4c54463b1f456655efa95b5c77">Size</a>&#160;</td><td class="memItemRight" valign="bottom"><b>locateX</b> (<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> x) const</td></tr>
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<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a>&#160;</td><td class="memItemRight" valign="bottom"><b>yMin</b> () const</td></tr>
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std::vector&lt; <a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>yValues</b> () const</td></tr>
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<a class="el" href="group__types.html#gaf38bdb4c54463b1f456655efa95b5c77">Size</a>&#160;</td><td class="memItemRight" valign="bottom"><b>locateY</b> (<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> y) const</td></tr>
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const <a class="el" href="class_quant_lib_1_1_matrix.html">Matrix</a> &amp;&#160;</td><td class="memItemRight" valign="bottom"><b>zData</b> () const</td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><b>isInRange</b> (<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> x, <a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> y) const</td></tr>
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void&#160;</td><td class="memItemRight" valign="bottom"><b>update</b> ()</td></tr>
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<tr class="inherit_header pub_methods_class_quant_lib_1_1_extrapolator"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_quant_lib_1_1_extrapolator')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="class_quant_lib_1_1_extrapolator.html">Extrapolator</a></td></tr>
<tr class="memitem:ae60e793a77f44a9c022b103458fa993c inherit pub_methods_class_quant_lib_1_1_extrapolator"><td class="memItemLeft" align="right" valign="top"><a id="ae60e793a77f44a9c022b103458fa993c"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_quant_lib_1_1_extrapolator.html#ae60e793a77f44a9c022b103458fa993c">enableExtrapolation</a> (bool b=true)</td></tr>
<tr class="memdesc:ae60e793a77f44a9c022b103458fa993c inherit pub_methods_class_quant_lib_1_1_extrapolator"><td class="mdescLeft">&#160;</td><td class="mdescRight">enable extrapolation in subsequent calls <br /></td></tr>
<tr class="separator:ae60e793a77f44a9c022b103458fa993c inherit pub_methods_class_quant_lib_1_1_extrapolator"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abab5047522a68771f2b1d51d1ac78383 inherit pub_methods_class_quant_lib_1_1_extrapolator"><td class="memItemLeft" align="right" valign="top"><a id="abab5047522a68771f2b1d51d1ac78383"></a>
void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_quant_lib_1_1_extrapolator.html#abab5047522a68771f2b1d51d1ac78383">disableExtrapolation</a> (bool b=true)</td></tr>
<tr class="memdesc:abab5047522a68771f2b1d51d1ac78383 inherit pub_methods_class_quant_lib_1_1_extrapolator"><td class="mdescLeft">&#160;</td><td class="mdescRight">disable extrapolation in subsequent calls <br /></td></tr>
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bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_quant_lib_1_1_extrapolator.html#a323f875818fddd62a1c56c25ddaee418">allowsExtrapolation</a> () const</td></tr>
<tr class="memdesc:a323f875818fddd62a1c56c25ddaee418 inherit pub_methods_class_quant_lib_1_1_extrapolator"><td class="mdescLeft">&#160;</td><td class="mdescRight">tells whether extrapolation is enabled <br /></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
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typedef <a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a>&#160;</td><td class="memItemRight" valign="bottom"><b>first_argument_type</b></td></tr>
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typedef <a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a>&#160;</td><td class="memItemRight" valign="bottom"><b>second_argument_type</b></td></tr>
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<tr class="separator:abd4b619e88e62e8c704bc850340fc078 inherit pub_types_class_quant_lib_1_1_interpolation2_d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pro_methods_class_quant_lib_1_1_interpolation2_d"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_class_quant_lib_1_1_interpolation2_d')"><img src="closed.png" alt="-"/>&#160;Protected Member Functions inherited from <a class="el" href="class_quant_lib_1_1_interpolation2_d.html">Interpolation2D</a></td></tr>
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void&#160;</td><td class="memItemRight" valign="bottom"><b>checkRange</b> (<a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> x, <a class="el" href="group__types.html#ga4bdf4bfe76b9ffa6fa64c47d8bfa0c78">Real</a> y, bool extrapolate) const</td></tr>
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ext::shared_ptr&lt; <a class="el" href="class_quant_lib_1_1_interpolation2_d_1_1_impl.html">Impl</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>impl_</b></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><dl class="caveats"><dt><b><a class="el" href="caveats.html#_caveats000084">Warning:</a></b></dt><dd>See the <a class="el" href="class_quant_lib_1_1_interpolation.html" title="base class for 1-D interpolations.">Interpolation</a> class for information about the required lifetime of the underlying data. </dd></dl>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
<a id="a65f64b104a39fe15265e46f3fc95d78a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a65f64b104a39fe15265e46f3fc95d78a">&#9670;&nbsp;</a></span>BackwardflatLinearInterpolation()</h2>

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          <td class="memname"><a class="el" href="class_quant_lib_1_1_backwardflat_linear_interpolation.html">BackwardflatLinearInterpolation</a> </td>
          <td>(</td>
          <td class="paramtype">const I1 &amp;&#160;</td>
          <td class="paramname"><em>xBegin</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const I1 &amp;&#160;</td>
          <td class="paramname"><em>xEnd</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const I2 &amp;&#160;</td>
          <td class="paramname"><em>yBegin</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const I2 &amp;&#160;</td>
          <td class="paramname"><em>yEnd</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const M &amp;&#160;</td>
          <td class="paramname"><em>zData</em>&#160;</td>
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          <td></td>
          <td>)</td>
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<dl class="section pre"><dt>Precondition</dt><dd>the \( x \) and \( y \) values must be sorted. </dd></dl>

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