Man pages matching name catanh in section 3:

catanh.3.en	debian 10 / manpages-dev
catanh.3.ja	debian 10 / manpages-ja-dev
catanh.3.en	debian 11 / manpages-dev
catanh.3.fr	debian 11 / manpages-fr-dev
catanh.3.ja	debian 11 / manpages-ja-dev
catanh.3.en	debian 12 / manpages-dev
catanh.3.fr	debian 12 / manpages-fr-dev
catanh.3.ja	debian 12 / manpages-ja-dev
catanh.3.de	debian 13 / manpages-de-dev
catanh.3.en	debian 13 / manpages-dev
catanh.3.fr	debian 13 / manpages-fr-dev
catanh.3.ja	debian 13 / manpages-ja-dev
catanh.3.pl	debian 13 / manpages-pl-dev
catanh.3.ro	debian 13 / manpages-ro-dev
catanh.3.ru	debian 13 / manpages-ru-dev