HP 20b Instruction Manual
Using the rpn stack to solve problems efficiently
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Also See for HP 20b:
- Quick start manual (95 pages) ,
- User manual (75 pages) ,
- Instruction manual (5 pages)
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Summary of Contents for HP HP 20b
- Page 1 HP 20b Using the RPN stack to solve problems efficiently The benefits of understanding RPN stack operations Understanding the HP 20b RPN stack operation in RPN mode Viewing and reordering stack-register contents Using ANS contents in chain calculations...
- Page 2 To put the HP 20b into RPN mode, press :u, then press < five times. The display should show either Chain, Algebraic or RPN. If it does not show RPN and you wish to put the HP 20b into RPN mode, press I until the display shows RPN (which would only take one or two times).
- Page 3 5. maintain a copy of T-register contents in T. NOTE: On the HP 20b, the I key terminates digit entry and places the keyed value into the X register. It does not copy this value into the Y-register the way previous RPN calculator implementations have done. In this sense, the HP 20b operates more like the graphical RPL calculators.
- Page 4 The sequence :k2* computes the second part of the right side of the equation, once the original value of X has been brought back from the ANS-register. hp calculators - 4 - HP 20b Using the RPN stack to solve problems efficiently - Version 1.0...
- Page 5 One of the shortest keystroke sequences to compute y in the expression is: 3.4567:n:d:i}:d:k2*++ Figure 9 These examples only begin to scratch the surface of the possibilities that exist when using RPN. hp calculators - 5 - HP 20b Using the RPN stack to solve problems efficiently - Version 1.0...
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