Bit::Vector->new()              # bv constructor
$vec->to_Hex()                  # bv -> HEX string
$vec->to_Bin()                  # bv -> BINARY string
$vec->Clone()                   # new vector, exact duplicate
$vec->Size()                    # gets length of bv
$vec->Reverse()                 # reverses bv
$vec->bit_test($index)          # 0 or 1
$vec->bit_flip($index)          # flips bv's bit at $index
$vec->Bit_On($index)            # turn bit on
$vec->Bit_Off($index)           # turn bit off
$vec->Interval_Scan_dec         # grabs (min,max) of next chunk of 0's
$vec->Lexicompare($vec2)        # +1,0, or -1