WHY THIS BELATED REVIEW? I feel very obliged to share my views about this old workhorse, the HP12C GOLD at its 25th anniversary and my 1Oth year as a satisfied ower user and fan. Especially after sharing my frank views on Amazon about two of its three successors on Amazon.com, burying the HP12c Platinum (2004 1st release, HP12cP) and praising the HP12c Platiunum Anniversary Edition (2006 3rd release, HP12cPAE or HP12cPA).