THE BEST calculator I've ever tried – powerOne Scientific and Graphing Pro Calculator Review

I do a lot with numbers, and I've been using calculators since they first came out in the 60's. I've got degrees in Math, computer science, and physics. I've helped build training systems so that new mission controllers could learn to fly their satellites. Over the decades I've made it a point to buy the best calculators I could find, and I've tried dozens, always looking for something better. I've owned or used calculators from Sharp, TI, HP, Casio and others. This is THE BEST calculator I've ever tried, not only because it's great on its own, but especially because it's so quickly adapted to help me do what I need. For example, a single line equation: Adjacent/Hypotenuse = cos(Angle) turns instantly into an easy-to-use template for finding any of these three variables when the other two are known. Others have raved about its RPN mode; but I love how it lets me type in equations, and review & correct them in case I've made a typo, or want to do a series of long but similar calculations without having to type in everything from scratch every time. There are many other calculators that can do these kinds of things, but this is the only one I'm aware of that is so easily and powerfully extensible. If this only existed as a hardware calculator, it would be worth it to me to pay many times this price, and tote it around. But this runs on my iPad, which makes it so much easier to have near me when I need it. My hat's off to the developer for an awesome job! A few minor wishes: 1) I wish I had a compatible version for my Mac, and could exchange templates via USB. 2) Bluetooth keyboard support is there while writing templates, but not there when using them. This is not unreasonable, but still I wish it was there all the time. 3) I wish someone had told me about this App when it first came out!
Review by Somosa-Dosa on powerOne Scientific and Graphing Pro Calculator.