HP17BIIPlus

• Statistics and Mathematics List based, two-variable statistical
  analysis.
• STD deviation/mean/weighted mean.
  forecasting, correlation coefficient: linear, logarithmic, exponential,
  power.
• +,-, x, /, %, 1/x, +/-, ex, n!, yx, Σx, Σx2, Σy, ´y2, Σxy.
• LOG, LN, 10x, PI, EXP, NItime and data management clock, calendar,
  appointments, and alarm.
• Date arithmetic (1528.10.15.~9999.12.31)
• Number lists, edit, sort, store customizing features •hp solve
  application
• Memory capacity unlimited within available memory.
• Custom menus system internal precision up to 12 digits.
• 28k additional user RAM
• Power-off memory protection.
• Decimal-point selection.
• Multiple languages: German English, Spanish, French, Italian, Portuguese.
• Entry-system logic: RPN, ALG. Adjustable contrast. Beeper on/off
• Users manual, leather pouch, prompt ON card and addendum card
  included
  

HP 10BII

• Over 100 built in business and
  math functions
• Parenthesis for grouping
  expressions
• TV (loans,savings,leasings)
• Amortisation
• Register based cash flow
  analysis NPV,IRR
• Interest rate conversions
• Markup and margin as % of
  cost and price,% change
• Statistical/Mathematical features

HP12C Platt

 

• World-class industry leader now includes RPN and algebraic entry
  - an HP 12c platinum breakthrough
• More power to perform industry-specific calculations with 4 times
  more memory
• Choice of two entry modes
• Millions of users attest to it’s reliability