add_date_int add_interval_interval add_timestamptz_interval bool_in bool_out cstring2text date_to_timestamp date_to_timestamptz float_angular_difference float_exp float_ln float_log10 float_round interval_cmp interval_make minus_date_date minus_date_int minus_timestamptz_interval minus_timestamptz_timestamptz mul_interval_double pg_date_in pg_date_out pg_interval_in pg_interval_out text2cstring text_cmp text_copy text_initcap text_lower text_out text_upper textcat_text_text time_in time_out timestamp_in timestamp_out timestamp_to_date timestamptz_in timestamptz_out timestamptz_shift timestamptz_to_date

float_angular_difference() double float_angular_difference ( double  degrees1, double  degrees2  ) Return the angular difference, i.e., the smaller angle between the two degree values. Parameters [in] degrees1,degrees2 Values