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<p>or <a href="page.php?w=column_vector">column vector</a> of its components in a rectangular coordinate system; this article follows the convention of the gradient being a column vector, while the derivative is a row vector.</p>

<p><big>Cylindrical and spherical coordinates</big></p>
<p>In <a href="page.php?w=cylindrical_coordinate_system">cylindrical coordinates</a>, the gradient is given by:</p>

<p>where  is the axial distance,  is the azimuthal or azimuth angle,  is the axial coordinate, and ,  and  are unit vectors pointing along the coordinate directions.</p><p>
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