eqn(7) on FreeBSD
The text e2a8d364b04f, as FreeBSD 11.4-RELEASE, FreeBSD 11.3-RELEASE, FreeBSD 11.2-RELEASE shipped it.
eqn language reference for mandoc
The text e2a8d364b04f, as FreeBSD 11.4-RELEASE, FreeBSD 11.3-RELEASE, FreeBSD 11.2-RELEASE shipped it.
eqn language reference for mandoc