Just like I remembered (and then some!)
The HP17B II was my trusty sidekick all through graduate school. Sadly mine died years ago. This is not only a spot on IOS version, but it adds bells and whistles in the form of additional functions (conversions, tips, scientific tools, and otherwise). Loads fast on my iPhone 6. What a nice surprise to find this app.
chowderhead1962 about
17BII-Pro, v4.8