Man pages matching name cexp2 in section 3:

cexp2.3.en	debian 10 / manpages-dev
cexp2.3.ja	debian 10 / manpages-ja-dev
cexp2.3.en	debian 11 / manpages-dev
cexp2.3.fr	debian 11 / manpages-fr-dev
cexp2.3.ja	debian 11 / manpages-ja-dev
cexp2.3.de	debian 12 / manpages-de-dev
cexp2.3.en	debian 12 / manpages-dev
cexp2.3.fr	debian 12 / manpages-fr-dev
cexp2.3.ja	debian 12 / manpages-ja-dev