After using the HP 12c (and the 12c 25th Anniv edition), this calculator was insanely frustrating to use. The keys didn't always respond, even with the "click" which requires me to keep a vigilant eye on the display when inputting numbers (this is most common in repeating digits, such as 10,000 which will frequently drop a zero or two). Also, the lack of an RPN option is a glaring flaw considering the prevalence of the 12c over the past 25 years.
On the plus side, the one-key delete is a huge plus, though I suppose it's a requirement given the spotty input. And it does its job - and fast - it's about 50% faster than the 12c 25th Anniv edition (and about 15 times faster than the '81 model), but the difference between modern calculators is fairly negligible, looking at the difference of a split second for difficult interest calculations or such.
Other than that, it does everything that a 12c or other financial calculator can, with one exception. It can do trig and a handful of other non-financial functions. Maybe there's a reason for this, but I don't see it.
Unfortunately, the 12c is not allowed in SOA exams. If they were, you can bet I'd sell this one ASAP.Get more detail about Texas Instruments BA II Plus Professional Financial Calculator.
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