I have reviewed Mr. Brock’s calculators before. They are fantastic.
I am a professor teaching Finance and Accounting to both graduates and undergraduates. I strongly recommend this calculator to those students, and have never had a student who had an iPhone or iPad not rave about this application. My only wish is that the same app was available for other (inferior, IMO) phones.
This calculator does MORE than the native HP calculator does—it has a superior interface and it has additional features, including graphing capabilities, that make some problems very easy to understand and to visualize.
Mr. Brock is very responsive to questions when asked. This calculator should be in the iPhone or iPad of every student interested in business subjects.