The next neqn word to learn is "over", which makes
In fact that line was made by
To begin with an easy one, reproduce
the equation below in the file "Example", then type
(To get $>=$, type ">=".)
x+1 over y+1 ~>=~ x over y
#once neqn Ref | nroff >X1 &
#once neqn message Ref | nroff -T$term %s/tinyms -