A chart for the conversion between degrees and radians, along with the signs of the major trigonometric functions in each quadrant.
<ul><li><a href="//commons.wikimedia.org/wiki/File:Degree-Radian_Conversion.svg" title="File:Degree-Radian Conversion.svg">Degree-Radian_Conversion.svg</a>: <a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:F_l_a_n_k_e_r" title="User:F l a n k e r">F l a n k e r</a> (<a href="//commons.wikimedia.org/wiki/User_talk:F_l_a_n_k_e_r" title="User talk:F l a n k e r"><span class="signature-talk">talk</span></a>)</li></ul>
2011-09-26 09:43
<ul><li><a href="//commons.wikimedia.org/wiki/File:Degree-Radian_Conversion.svg" title="File:Degree-Radian Conversion.svg">Degree-Radian_Conversion.svg</a></li></ul>