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a more confusing way

release/4.3a0
Duy-Nguyen Ta 2011-04-10 18:32:09 +00:00
parent 10b37db234
commit c9a6b16bc2
1 changed files with 2 additions and 2 deletions
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4
gtsam/base/numericalDerivative.h
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@ -466,9 +466,9 @@ namespace gtsam {
*/ */
template<class X> template<class X>
inline Matrix numericalHessian(boost::function<double(const X&)> f, const X& x, double delta=1e-5) { inline Matrix numericalHessian(boost::function<double(const X&)> f, const X& x, double delta=1e-5) {
Vector (*numGrad)(boost::function<double(const X&)>,const X&, double) = &numericalGradient<X>;
return numericalDerivative11<X>(boost::function<Vector(const X&)>(boost::bind( return numericalDerivative11<X>(boost::function<Vector(const X&)>(boost::bind(
numGrad, f, _1, delta)), x, delta); static_cast<Vector (*)(boost::function<double(const X&)>,const X&, double)>(&numericalGradient<X>),
f, _1, delta)), x, delta);
} }
template<class X> template<class X>