%~<%	doubles
%~<=%	doubles
%~==%	doubles
%~>%	doubles
%~>=%	doubles
abs_diff	diff
all_equal	all_equal
double_equal	doubles
double_gt	doubles
double_gte	doubles
double_lt	doubles
double_lte	doubles
get_tolerance	tolerance
rel_diff	diff
set_tolerance	tolerance
tolerance	tolerance
