00383nam a2200133 a 450000500170000002000150001708200170003210000180004924500450006726000720011230000230018449000290020750000130023620251203110203.0  a0883856360  a510.285bENG  aEngel, Arthur  aExploring mathematics with your computer  aUnited States of AmericabMathematical Association of Americac1993  ax,301p.c22cm. PB.  aNew mathematical library  ainc.Disc