177             inter = boost::math::acosh(val);  in test_inverse_trig()
442    result = boost::math::acosh(ct(zero, zero));  in check_spots()
446    result = boost::math::acosh(ct(zero, mzero));  in check_spots()
450    result = boost::math::acosh(ct(mzero, zero));  in check_spots()
454    result = boost::math::acosh(ct(mzero, mzero));  in check_spots()
460       result = boost::math::acosh(ct(one, infinity));  in check_spots()
464       result = boost::math::acosh(ct(one, -infinity));  in check_spots()
471       result = boost::math::acosh(ct(one, nan));  in check_spots()
477       result = boost::math::acosh(ct(-infinity, one));  in check_spots()
481       result = boost::math::acosh(ct(infinity, one));  in check_spots()
485       result = boost::math::acosh(ct(-infinity, -one));  in check_spots()
489       result = boost::math::acosh(ct(infinity, -one));  in check_spots()
493       result = boost::math::acosh(ct(-infinity, infinity));  in check_spots()
497       result = boost::math::acosh(ct(infinity, infinity));  in check_spots()
501       result = boost::math::acosh(ct(-infinity, -infinity));  in check_spots()
505       result = boost::math::acosh(ct(infinity, -infinity));  in check_spots()
512       result = boost::math::acosh(ct(infinity, nan));  in check_spots()
516       result = boost::math::acosh(ct(-infinity, nan));  in check_spots()
520       result = boost::math::acosh(ct(nan, one));  in check_spots()
524       result = boost::math::acosh(ct(nan, infinity));  in check_spots()
528       result = boost::math::acosh(ct(nan, -one));  in check_spots()
532       result = boost::math::acosh(ct(nan, -infinity));  in check_spots()
536       result = boost::math::acosh(ct(nan, nan));  in check_spots()
542       result = boost::math::acosh(ct(-2.5f, zero));  in check_spots()