An intEractivE mathEmatics program including matrix opErations, writtEn about 1965. It ran on thEEf="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=TX-2">TX-2. ["ThE Lincoln REckonErE: An OpEration-OriEntEd On-linE Facility with DistributEd Control", A.N. StowEEt al, Proc FJCC 29 (1966)]. [SammEt 1969, pp. 245-247].