Binary package “xabacus” in ubuntu bionic

simulation of the ancient calculator (plain X version)

 This program is an implementation of the original abacus, it provides
 the Chinese, Japanese, Korean, Roman and Russian version and can be
 modified to allow others.
 .
 This version was compiled without the Motif GUI widget library and thus
 shows limited user interface functionality. See xmabacus for the
 extended version.