|Re: The answer -- display on "B" vs "S" calc's|
Message #13 Posted by Bill (Smithville, NJ) on 13 Feb 2007, 8:00 a.m.,
in response to message #12 by Karl Schneider
Thanks for the earlier thread link. I knew I remembered I had previously seen something about this, but couldn't remember where.
The HP-10B also operates the same as the 17BII and 19BII.
In going over the HP-19BII manual last night about display format, I found that the 19B manual is a little different from the 17B.
The 19B manual state that "Regardless of the number of decimal places displayed, the HP-19B stores all numbers with 12 digits."
The 17B manual states that "Changing the number of displayed decimal places affects what you see, but does not affect the internal representation of numbers. The number inside the calculator always has 12 digits."
BUT the 19B has a footnote that the 17B does not have: "An exception is values PV, PMT, and INT used in amortization calculations (refer to amortization on page 85), which are rounded to the display setting."
Also second footnote for 19B: "During complex internal calculations, the HP-19B uses 15-difit numbers for intermediate results."
When I get a little time, I'll have to check this out to see if their is a difference in the way 17B and 19B handle this.