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<h4 class="subsection">8.4.11 Finding maximum and minimum elements of matrices</h4>
<p>The following operations are only defined for real matrices.
<div class="defun">
— Function: double <b>gsl_matrix_max</b> (<var>const gsl_matrix * m</var>)<var><a name="index-gsl_005fmatrix_005fmax-982"></a></var><br>
<blockquote><p>This function returns the maximum value in the matrix <var>m</var>.
</p></blockquote></div>
<div class="defun">
— Function: double <b>gsl_matrix_min</b> (<var>const gsl_matrix * m</var>)<var><a name="index-gsl_005fmatrix_005fmin-983"></a></var><br>
<blockquote><p>This function returns the minimum value in the matrix <var>m</var>.
</p></blockquote></div>
<div class="defun">
— Function: void <b>gsl_matrix_minmax</b> (<var>const gsl_matrix * m, double * min_out, double * max_out</var>)<var><a name="index-gsl_005fmatrix_005fminmax-984"></a></var><br>
<blockquote><p>This function returns the minimum and maximum values in the matrix
<var>m</var>, storing them in <var>min_out</var> and <var>max_out</var>.
</p></blockquote></div>
<div class="defun">
— Function: void <b>gsl_matrix_max_index</b> (<var>const gsl_matrix * m, size_t * imax, size_t * jmax</var>)<var><a name="index-gsl_005fmatrix_005fmax_005findex-985"></a></var><br>
<blockquote><p>This function returns the indices of the maximum value in the matrix
<var>m</var>, storing them in <var>imax</var> and <var>jmax</var>. When there are
several equal maximum elements then the first element found is returned,
searching in row-major order.
</p></blockquote></div>
<div class="defun">
— Function: void <b>gsl_matrix_min_index</b> (<var>const gsl_matrix * m, size_t * imin, size_t * jmin</var>)<var><a name="index-gsl_005fmatrix_005fmin_005findex-986"></a></var><br>
<blockquote><p>This function returns the indices of the minimum value in the matrix
<var>m</var>, storing them in <var>imin</var> and <var>jmin</var>. When there are
several equal minimum elements then the first element found is returned,
searching in row-major order.
</p></blockquote></div>
<div class="defun">
— Function: void <b>gsl_matrix_minmax_index</b> (<var>const gsl_matrix * m, size_t * imin, size_t * jmin, size_t * imax, size_t * jmax</var>)<var><a name="index-gsl_005fmatrix_005fminmax_005findex-987"></a></var><br>
<blockquote><p>This function returns the indices of the minimum and maximum values in
the matrix <var>m</var>, storing them in (<var>imin</var>,<var>jmin</var>) and
(<var>imax</var>,<var>jmax</var>). When there are several equal minimum or maximum
elements then the first elements found are returned, searching in
row-major order.
</p></blockquote></div>
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