https://svn.boost.org/trac10/ticket/3865 <p> Currently the inverse trigonometric functions do not work for systems that do not contain a unit of angle. To make the library more usable with heterogeneous systems, they should default to radians, since that is the natural unit of angle. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/3865 Trac 1.4.3 Steven Watanabe Tue, 08 Jun 2010 01:00:30 GMT https://svn.boost.org/trac10/ticket/3865#comment:1 https://svn.boost.org/trac10/ticket/3865#comment:1 <ul> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">closed</span> </li> <li><strong>resolution</strong> → <span class="trac-field-new">fixed</span> </li> </ul> <p> (In <a class="changeset" href="https://svn.boost.org/trac10/changeset/62533" title="Add overloads of inverse trig functions that take heterogeneous units ...">[62533]</a>) Add overloads of inverse trig functions that take heterogeneous units and return the angles in radians. Fixes <a class="closed ticket" href="https://svn.boost.org/trac10/ticket/3865" title="#3865: Bugs: Make inverse trig functions default to radians (closed: fixed)">#3865</a> </p> Ticket