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Digital camera reviews of HP 33S Scientific Calculator (F2216A)Digital camera Review: Better than the 32SII Summary: 5 Stars
I bought this calculator for less than got for my BROKEN HP 32SII on ebay! It is just like the 32SII with some new features and buttons. It also looks cool - although the 32SII looked cool too in a 1990 type of way. As far as I know it is the only RPN calculator you can buy (not counting those dorky graphing models).Using this calculator just makes you feel good.
Digital camera Review: Beware!! Only 4 registers!! Summary: 2 Stars
I was used to the HP 49G, which has an effectively infinite stack size. I just assumed that this would too, but noooo! The top of the stack is 4. Type in the 5th variable, hit enter, and the 1st variable is gone!For me, this makes the calculator very unattractive. Had I known that the stack was only 4 registers, I would not have bought it. Also, like everyone else on this page says, the decimal point is way too small.
Digital camera Review: Boy is HP wrong putting this out! Summary: 1 Stars
I was amazed with this labor intensive Gordian knot. It reminded me of using a computer before someone invented the mouse. (I am 70 years old.) I own the HP15C and have happily used it for years, but the idea of the choice of entry RPN or Algebraic is worthless and adds to the confusion as to how to enter anything. (Many entry steps in the manual are checked to indicate a difference.) This HP33s is the most difficult thing I have encountered, and it was hard for me to get the same answer twice, or even find the previous entry, when it came to something simple like evaluating or reevaluating a polynominal.
I was amazed that the HP33s at one point in the manual suggested that if you are having trouble finding the roots, then (by hand) draw a graph. Well, how about having graphing capacity with the calculator? Every other calculator around the same price does that!
It seems obvious that TI has long ago proven that to avoid labor intensive entry, the use of formulas rather than endless key strokes is the way to go. The TI 86 at twice the price is well worth it, I assure you!
Digital camera Review: Bring Back the HP 15c Summary: 3 Stars
I recently purchased the HP33s as a replacement for my 20+ year old HP15c that I accidently dropped and damaged beyond repair. I first went to the HP website looking for another 15c only to find it had been discontinued, although HP had re-issued the Financial 12c(??) I wanted a caluclator with RPN and eventually came to the HP33s. While this calculator incorporates all of the needed functions etc... it is a very poor replacment for the 15c. It is to large, the display is difficult to view and key-pad not very ergonomic. The 15c was superior in each of these respects. I have since emailed the HP-CEO (Mr. Hurd)on line requesting that they bring back (re-iisue the 15c) as they did the financial 12c. [...]
Digital camera Review: Bring back the 32S Summary: 1 Stars
After my 32S died, I had no choice but to purchase a 33S. Wow, what a disappointment. The things that made HP's so good had evaporated. The error free keyboard feed back, the simple, easy to read screen, the general quality feel.....All gone.
For me, I make errors with this calculator >25% of the time which I did not make with my 32S. This is because the parallelagram keys induce errors from lack of input (click with no input) and they keys are too congested. I have tossed this junker and decided to get my 32S repaired. The 33S has made for a great used market for 32S's. They're going for ~$150 or 3 times what they sold new.
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