inv_logit.hpp

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#ifndef __STAN__MATH__FUNCTIONS__INV_LOGIT_HPP__
#define __STAN__MATH__FUNCTIONS__INV_LOGIT_HPP__

#include <boost/math/tools/promotion.hpp>

namespace stan {

  namespace math {

    template <typename T>
    inline typename boost::math::tools::promote_args<T>::type
    inv_logit(const T a) {
      using std::exp;
      return 1.0 / (1.0 + exp(-a));
    }

  }
}

#endif