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<div class="subTitle">org.apache.commons.math3.linear</div>
<h2 title="Class OpenMapRealMatrix" class="title">Class OpenMapRealMatrix</h2>
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<ul class="inheritance">
<li><a href="../../../../../org/apache/commons/math3/linear/RealLinearOperator.html" title="class in org.apache.commons.math3.linear">org.apache.commons.math3.linear.RealLinearOperator</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">org.apache.commons.math3.linear.AbstractRealMatrix</a></li>
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<li>org.apache.commons.math3.linear.OpenMapRealMatrix</li>
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<dd><a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, <a href="../../../../../org/apache/commons/math3/linear/AnyMatrix.html" title="interface in org.apache.commons.math3.linear">AnyMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/SparseRealMatrix.html" title="interface in org.apache.commons.math3.linear">SparseRealMatrix</a></dd>
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<pre>public class <span class="strong">OpenMapRealMatrix</span>
extends <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a>
implements <a href="../../../../../org/apache/commons/math3/linear/SparseRealMatrix.html" title="interface in org.apache.commons.math3.linear">SparseRealMatrix</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre>
<div class="block">Sparse matrix implementation based on an open addressed map.
<p>
Caveat: This implementation assumes that, for any <code>x</code>,
the equality <code>x * 0d == 0d</code> holds. But it is is not true for
<code>NaN</code>. Moreover, zero entries will lose their sign.
Some operations (that involve <code>NaN</code> and/or infinities) may
thus give incorrect results.
</p></div>
<dl><dt><span class="strong">Since:</span></dt>
<dd>2.0</dd>
<dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../serialized-form.html#org.apache.commons.math3.linear.OpenMapRealMatrix">Serialized Form</a></dd></dl>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#OpenMapRealMatrix(int,%20int)">OpenMapRealMatrix</a></strong>(int rowDimension,
int columnDimension)</code>
<div class="block">Build a sparse matrix with the supplied row and column dimensions.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#OpenMapRealMatrix(org.apache.commons.math3.linear.OpenMapRealMatrix)">OpenMapRealMatrix</a></strong>(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> matrix)</code>
<div class="block">Build a matrix by copying another one.</div>
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<h3>Method Summary</h3>
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<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>
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<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#add(org.apache.commons.math3.linear.OpenMapRealMatrix)">add</a></strong>(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> m)</code>
<div class="block">Compute the sum of this matrix and <code>m</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#addToEntry(int,%20int,%20double)">addToEntry</a></strong>(int row,
int column,
double increment)</code>
<div class="block">Adds (in place) the specified value to the specified entry of
<code>this</code> matrix.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#copy()">copy</a></strong>()</code>
<div class="block">Returns a (deep) copy of this.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#createMatrix(int,%20int)">createMatrix</a></strong>(int rowDimension,
int columnDimension)</code>
<div class="block">Create a new RealMatrix of the same type as the instance with the
supplied
row and column dimensions.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#getColumnDimension()">getColumnDimension</a></strong>()</code>
<div class="block">Returns the number of columns of this matrix.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>double</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#getEntry(int,%20int)">getEntry</a></strong>(int row,
int column)</code>
<div class="block">Get the entry in the specified row and column.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#getRowDimension()">getRowDimension</a></strong>()</code>
<div class="block">Returns the number of rows of this matrix.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#multiply(org.apache.commons.math3.linear.OpenMapRealMatrix)">multiply</a></strong>(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> m)</code>
<div class="block">Postmultiply this matrix by <code>m</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#multiply(org.apache.commons.math3.linear.RealMatrix)">multiply</a></strong>(<a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a> m)</code>
<div class="block">Returns the result of postmultiplying <code>this</code> by <code>m</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#multiplyEntry(int,%20int,%20double)">multiplyEntry</a></strong>(int row,
int column,
double factor)</code>
<div class="block">Multiplies (in place) the specified entry of <code>this</code> matrix by the
specified value.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#setEntry(int,%20int,%20double)">setEntry</a></strong>(int row,
int column,
double value)</code>
<div class="block">Set the entry in the specified row and column.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#subtract(org.apache.commons.math3.linear.OpenMapRealMatrix)">subtract</a></strong>(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> m)</code>
<div class="block">Subtract <code>m</code> from this matrix.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html#subtract(org.apache.commons.math3.linear.RealMatrix)">subtract</a></strong>(<a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a> m)</code>
<div class="block">Returns <code>this</code> minus <code>m</code>.</div>
</td>
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</table>
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<h3>Methods inherited from class org.apache.commons.math3.linear.<a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></h3>
<code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#add(org.apache.commons.math3.linear.RealMatrix)">add</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#copySubMatrix(int[],%20int[],%20double[][])">copySubMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#copySubMatrix(int,%20int,%20int,%20int,%20double[][])">copySubMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#equals(java.lang.Object)">equals</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getColumn(int)">getColumn</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getColumnMatrix(int)">getColumnMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getColumnVector(int)">getColumnVector</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getData()">getData</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getFrobeniusNorm()">getFrobeniusNorm</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getNorm()">getNorm</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getRow(int)">getRow</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getRowMatrix(int)">getRowMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getRowVector(int)">getRowVector</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getSubMatrix(int[],%20int[])">getSubMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getSubMatrix(int,%20int,%20int,%20int)">getSubMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getTrace()">getTrace</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#hashCode()">hashCode</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#isSquare()">isSquare</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#operate(double[])">operate</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#operate(org.apache.commons.math3.linear.RealVector)">operate</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#power(int)">power</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#preMultiply(double[])">preMultiply</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#preMultiply(org.apache.commons.math3.linear.RealMatrix)">preMultiply</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#preMultiply(org.apache.commons.math3.linear.RealVector)">preMultiply</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#scalarAdd(double)">scalarAdd</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#scalarMultiply(double)">scalarMultiply</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#setColumn(int,%20double[])">setColumn</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#setColumnMatrix(int,%20org.apache.commons.math3.linear.RealMatrix)">setColumnMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#setColumnVector(int,%20org.apache.commons.math3.linear.RealVector)">setColumnVector</a>, <a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#setRow(int,%20double[])">setRow</a>, <a 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<code><a href="../../../../../org/apache/commons/math3/linear/RealLinearOperator.html#isTransposable()">isTransposable</a>, <a href="../../../../../org/apache/commons/math3/linear/RealLinearOperator.html#operateTranspose(org.apache.commons.math3.linear.RealVector)">operateTranspose</a></code></li>
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<code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#add(org.apache.commons.math3.linear.RealMatrix)">add</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#copySubMatrix(int[],%20int[],%20double[][])">copySubMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#copySubMatrix(int,%20int,%20int,%20int,%20double[][])">copySubMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#getColumn(int)">getColumn</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#getColumnMatrix(int)">getColumnMatrix</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#getColumnVector(int)">getColumnVector</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#getData()">getData</a>, <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#getFrobeniusNorm()">getFrobeniusNorm</a>, <a 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<code><a href="../../../../../org/apache/commons/math3/linear/AnyMatrix.html#isSquare()">isSquare</a></code></li>
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<pre>public OpenMapRealMatrix(int rowDimension,
int columnDimension)
throws <a href="../../../../../org/apache/commons/math3/exception/NotStrictlyPositiveException.html" title="class in org.apache.commons.math3.exception">NotStrictlyPositiveException</a>,
<a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></pre>
<div class="block">Build a sparse matrix with the supplied row and column dimensions.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>rowDimension</code> - Number of rows of the matrix.</dd><dd><code>columnDimension</code> - Number of columns of the matrix.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/NotStrictlyPositiveException.html" title="class in org.apache.commons.math3.exception">NotStrictlyPositiveException</a></code> - if row or column dimension is not
positive.</dd>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></code> - if the total number of entries of the
matrix is larger than <code>Integer.MAX_VALUE</code>.</dd></dl>
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<pre>public OpenMapRealMatrix(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> matrix)</pre>
<div class="block">Build a matrix by copying another one.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>matrix</code> - matrix to copy.</dd></dl>
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<pre>public <a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> copy()</pre>
<div class="block">Returns a (deep) copy of this.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#copy()">copy</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#copy()">copy</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>matrix copy</dd></dl>
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<pre>public <a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> createMatrix(int rowDimension,
int columnDimension)
throws <a href="../../../../../org/apache/commons/math3/exception/NotStrictlyPositiveException.html" title="class in org.apache.commons.math3.exception">NotStrictlyPositiveException</a>,
<a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></pre>
<div class="block">Create a new RealMatrix of the same type as the instance with the
supplied
row and column dimensions.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#createMatrix(int,%20int)">createMatrix</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#createMatrix(int,%20int)">createMatrix</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>rowDimension</code> - the number of rows in the new matrix</dd><dd><code>columnDimension</code> - the number of columns in the new matrix</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new matrix of the same type as the instance</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></code> - if the total number of entries of the
matrix is larger than <code>Integer.MAX_VALUE</code>.</dd>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/NotStrictlyPositiveException.html" title="class in org.apache.commons.math3.exception">NotStrictlyPositiveException</a></code> - if row or column dimension is not
positive.</dd></dl>
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<pre>public int getColumnDimension()</pre>
<div class="block">Returns the number of columns of this matrix.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AnyMatrix.html#getColumnDimension()">getColumnDimension</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/AnyMatrix.html" title="interface in org.apache.commons.math3.linear">AnyMatrix</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getColumnDimension()">getColumnDimension</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>the number of columns.</dd></dl>
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<h4>add</h4>
<pre>public <a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> add(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> m)
throws <a href="../../../../../org/apache/commons/math3/linear/MatrixDimensionMismatchException.html" title="class in org.apache.commons.math3.linear">MatrixDimensionMismatchException</a></pre>
<div class="block">Compute the sum of this matrix and <code>m</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - Matrix to be added.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>this</code> + <code>m</code>.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/MatrixDimensionMismatchException.html" title="class in org.apache.commons.math3.linear">MatrixDimensionMismatchException</a></code> - if <code>m</code> is not the same
size as <code>this</code>.</dd></dl>
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<h4>subtract</h4>
<pre>public <a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> subtract(<a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a> m)
throws <a href="../../../../../org/apache/commons/math3/linear/MatrixDimensionMismatchException.html" title="class in org.apache.commons.math3.linear">MatrixDimensionMismatchException</a></pre>
<div class="block">Returns <code>this</code> minus <code>m</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#subtract(org.apache.commons.math3.linear.RealMatrix)">subtract</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#subtract(org.apache.commons.math3.linear.RealMatrix)">subtract</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - matrix to be subtracted</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>this - m</code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/MatrixDimensionMismatchException.html" title="class in org.apache.commons.math3.linear">MatrixDimensionMismatchException</a></code> - if <code>m</code> is not the same
size as <code>this</code>.</dd></dl>
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<pre>public <a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> subtract(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> m)
throws <a href="../../../../../org/apache/commons/math3/linear/MatrixDimensionMismatchException.html" title="class in org.apache.commons.math3.linear">MatrixDimensionMismatchException</a></pre>
<div class="block">Subtract <code>m</code> from this matrix.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - Matrix to be subtracted.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>this</code> - <code>m</code>.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/MatrixDimensionMismatchException.html" title="class in org.apache.commons.math3.linear">MatrixDimensionMismatchException</a></code> - if <code>m</code> is not the same
size as <code>this</code>.</dd></dl>
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<h4>multiply</h4>
<pre>public <a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a> multiply(<a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a> m)
throws <a href="../../../../../org/apache/commons/math3/exception/DimensionMismatchException.html" title="class in org.apache.commons.math3.exception">DimensionMismatchException</a>,
<a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></pre>
<div class="block">Returns the result of postmultiplying <code>this</code> by <code>m</code>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#multiply(org.apache.commons.math3.linear.RealMatrix)">multiply</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#multiply(org.apache.commons.math3.linear.RealMatrix)">multiply</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - matrix to postmultiply by</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>this * m</code></dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></code> - if <code>m</code> is an
<code>OpenMapRealMatrix</code>, and the total number of entries of the product
is larger than <code>Integer.MAX_VALUE</code>.</dd>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/DimensionMismatchException.html" title="class in org.apache.commons.math3.exception">DimensionMismatchException</a></code> - if
<code>columnDimension(this) != rowDimension(m)</code></dd></dl>
</li>
</ul>
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<h4>multiply</h4>
<pre>public <a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> multiply(<a href="../../../../../org/apache/commons/math3/linear/OpenMapRealMatrix.html" title="class in org.apache.commons.math3.linear">OpenMapRealMatrix</a> m)
throws <a href="../../../../../org/apache/commons/math3/exception/DimensionMismatchException.html" title="class in org.apache.commons.math3.exception">DimensionMismatchException</a>,
<a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></pre>
<div class="block">Postmultiply this matrix by <code>m</code>.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>m</code> - Matrix to postmultiply by.</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>this</code> * <code>m</code>.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/DimensionMismatchException.html" title="class in org.apache.commons.math3.exception">DimensionMismatchException</a></code> - if the number of rows of <code>m</code>
differ from the number of columns of <code>this</code> matrix.</dd>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/NumberIsTooLargeException.html" title="class in org.apache.commons.math3.exception">NumberIsTooLargeException</a></code> - if the total number of entries of the
product is larger than <code>Integer.MAX_VALUE</code>.</dd></dl>
</li>
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<a name="getEntry(int, int)">
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<h4>getEntry</h4>
<pre>public double getEntry(int row,
int column)
throws <a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></pre>
<div class="block">Get the entry in the specified row and column. Row and column indices
start at 0.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#getEntry(int,%20int)">getEntry</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getEntry(int,%20int)">getEntry</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>row</code> - Row index of entry to be fetched.</dd><dd><code>column</code> - Column index of entry to be fetched.</dd>
<dt><span class="strong">Returns:</span></dt><dd>the matrix entry at <code>(row, column)</code>.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></code> - if the row or column index is not valid.</dd></dl>
</li>
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<a name="getRowDimension()">
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<h4>getRowDimension</h4>
<pre>public int getRowDimension()</pre>
<div class="block">Returns the number of rows of this matrix.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AnyMatrix.html#getRowDimension()">getRowDimension</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/AnyMatrix.html" title="interface in org.apache.commons.math3.linear">AnyMatrix</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#getRowDimension()">getRowDimension</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Returns:</span></dt><dd>the number of rows.</dd></dl>
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<a name="setEntry(int, int, double)">
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<h4>setEntry</h4>
<pre>public void setEntry(int row,
int column,
double value)
throws <a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></pre>
<div class="block">Set the entry in the specified row and column. Row and column indices
start at 0.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#setEntry(int,%20int,%20double)">setEntry</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#setEntry(int,%20int,%20double)">setEntry</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>row</code> - Row index of entry to be set.</dd><dd><code>column</code> - Column index of entry to be set.</dd><dd><code>value</code> - the new value of the entry.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></code> - if the row or column index is not valid</dd></dl>
</li>
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<a name="addToEntry(int, int, double)">
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<h4>addToEntry</h4>
<pre>public void addToEntry(int row,
int column,
double increment)
throws <a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></pre>
<div class="block">Adds (in place) the specified value to the specified entry of
<code>this</code> matrix. Row and column indices start at 0.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#addToEntry(int,%20int,%20double)">addToEntry</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#addToEntry(int,%20int,%20double)">addToEntry</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>row</code> - Row index of the entry to be modified.</dd><dd><code>column</code> - Column index of the entry to be modified.</dd><dd><code>increment</code> - value to add to the matrix entry.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></code> - if the row or column index is not valid.</dd></dl>
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<h4>multiplyEntry</h4>
<pre>public void multiplyEntry(int row,
int column,
double factor)
throws <a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></pre>
<div class="block">Multiplies (in place) the specified entry of <code>this</code> matrix by the
specified value. Row and column indices start at 0.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html#multiplyEntry(int,%20int,%20double)">multiplyEntry</a></code> in interface <code><a href="../../../../../org/apache/commons/math3/linear/RealMatrix.html" title="interface in org.apache.commons.math3.linear">RealMatrix</a></code></dd>
<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html#multiplyEntry(int,%20int,%20double)">multiplyEntry</a></code> in class <code><a href="../../../../../org/apache/commons/math3/linear/AbstractRealMatrix.html" title="class in org.apache.commons.math3.linear">AbstractRealMatrix</a></code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>row</code> - Row index of the entry to be modified.</dd><dd><code>column</code> - Column index of the entry to be modified.</dd><dd><code>factor</code> - Multiplication factor for the matrix entry.</dd>
<dt><span class="strong">Throws:</span></dt>
<dd><code><a href="../../../../../org/apache/commons/math3/exception/OutOfRangeException.html" title="class in org.apache.commons.math3.exception">OutOfRangeException</a></code> - if the row or column index is not valid.</dd></dl>
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