At its time, it was the pinnacle of financial calculators. Its 4 lines made it much more user friendly than its smaller sibling, the HP 17bii
The bII version handled RPN (while the 19b and 18c did not)
- Over 450 business, statistical, and scientific functions
- Includes HP Solve application
- Graphing display lets you view histograms, scatter diagrams, and curve fits
- List-based, 2-variable statistics and forecasting
- Calculate using algebraic notation or RPN
This is the rare, sought after back door model (see pictures). Comes with an excellent User Manual