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Rating:  -
I bought this calculator on the basis of good review here.
True, most of the good things mentioned in reviews here are indeed true but I found out one major flaw in the "algebra mode"
for this calculator.
In the past, I have avoided HP calculators becuase HP insists on RPN. So I was happy to have an HP calculator with both algebra and RPN until I found out about "Algebra mode" in this calculator.
In other algebra calculators, it is clear that the following is true:
3 + 4 * 5 = 23
But HP 18 gives me the following result:
3 + 4 * 5 = 35
In other words, it is not algebra, in the sense that is taught in the school.
Rating:  -
After the classic HP12C, this is the best financial calculator they ever made. My old one hasn't worn out, but I bought a NIB replacement at auction for when it does. This has all the functionality of the more cumbersom 19B, but in a better designed handheld size. I love my 12C, but this is the calculator I wish I had in grad school. The keys are fantastic, the menus are logical and fluid, the case is super rugged, and it is just all around excellent. I'm a messy klutz and have dropped mine and sat on it dozens of times and it still works like a the day I turned it on. I wish HP would re-issue it.
Rating: -
Super durable and reliable: I've had this calculator since 1992, I used it for my BA and my MSc. It has outlasted 4 laptops.
Batteries last a long time, but keep more handy. It uses LR44 (Maxell) equivalent to LR44H, L1154, A76, V13GA, LR44, AG13, PX76A, 675A, 303, G13A. 11.6x5.4 mm Size equivalent to 357, 303, SR44, S1154.
PLEASE NOTE: If you need Trigonometric Functions, this calculator is NOT for you.
Rating:  -
Great calculator, and HP's excellent manual does the job. HOWEVER, it should last. The early HP25 could be dropped off the table, and I still have one - unfortunately the battery died, or it would be active still. The operator keys stopped working on my 17BII. Power came on, self-test wouldn't test, and the operator(+ - x, etc. ) had no effect. People should buy HP calculators because they work well, they are well documented and they LAST. No matter how marvelous a calculator is, if the keys don't work, it is less than a paperweight.Charles Elliott
Rating: -
Nothing else even comes close. None of that annoying 5 minute wait like the 12c while you stare at a screen that says "running". Also, the 17b2+ has been visually cheapened (cheap plastic, rather than the metal-like cover). This is the banking gold standard. Easy to use and very intuitive.
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