ARCHIVE - Dec2Bin/TITLE> </HEAD> <BODY> <A NAME="top"> <A NAME="file1"> <H1>Dec2Bin</H1> <PRE> #!/usr/bin/python print "Convert decimal floating-point numbers to their binary represenation." print "Press <Enter> without entering a number to quit." while True: print "decimal:", decimal = raw_input() try: float(decimal) except ValueError: break if decimal.find('.')==-1: integer,fraction=decimal,'' else: integer,fraction = decimal.split('.') binary='' if integer is not '': integer = int(integer) while integer: binary = str(integer&1) + binary integer >>= 1 if fraction is not '': binary+='.' fraction = float('.'+fraction) while fraction: fraction*=2 if fraction>=1: binary+='1' fraction-=1 else: binary+='0' print " binary:", binary print </PRE> </BODY> </HTML>