https://svn.boost.org/trac10/ticket/8116 <p> On line 200 of boost/math/tools/toms748_solve.hpp, the code should be checking whether the coefficient 'A' of the quadratic polynomial is zero before giving up and calling secant_interpolate, not the variable 'a', which is the lower bound of the bracket. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/8116 Trac 1.4.3 John Maddock Sun, 03 Mar 2013 16:32:32 GMT https://svn.boost.org/trac10/ticket/8116#comment:1 https://svn.boost.org/trac10/ticket/8116#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/83283" title="Fixes #8116.">[83283]</a>) Fixes <a class="closed ticket" href="https://svn.boost.org/trac10/ticket/8116" title="#8116: Bugs: quadratic_interpolate does not work when bracket starts at zero (closed: fixed)">#8116</a>. </p> Ticket