Dump($v2); ## prints
SV = PV(0x176ec38) at 0x1765274
  REFCNT = 1
  FLAGS = (PADBUSY,PADMY,POK,pPOK)
  PV = 0x17601c0 "3.25"\0
  CUR = 4
  LEN = 8

my $v3 = 2.5 * $v2;
Dump($v3); ## prints
SV = NV(0x1761830) at 0x177ee88
  REFCNT = 1
  FLAGS = (PADBUSY,PADMY,NOK,pNOK)
  NV = 8.125