hp 10bii (HP10BII) Calculator Limits

• Enough memory to store an initial cash flow and 14 cash flow groups, with 99 cash flows per group.
• Ten numbered storage registers.
• Applications to solve business and financial tasks:
• Time Value of Money: Loans savings, leases, and amortization schedules.
• Interest Conversion: Nominal and effective rates.
• Cash flows: Net percent value and internal rate of return.
• Business Percentages: Percent change, markup, and margin calculations.
• Statistics: Mean, standard deviation, correlation coefficient, and linear regression forecasting, plus other statistical calculations.
• Easy access to functions saves keystrokes and adds convenience:
• Auto-increment capability for amortization schedules.
• Labels for amortization and cash flows.
• Automatic constant.
• 3-key memory.

The following table lists the software differences between the hp 10b (HP10B) and hp 10bii (HP10BII) calculators.

Feature	hp 10bii calculator ** new **	hp 10b calculator
User registers	10 Separate Registers	15 registers shared with cash flows and statistics
Cash Flows	15 separate cash flows	15 cash flows shared with user registers and statistics.
Statistical Variables	6 separate registers	6 registers shared with Cash flows and user registers.
Press: 12 + =	24	12
Press: 12 / =	1	12
Press: 12 * =	144	12
Press: 12 - =	0	12
displaying 0.00051 to two decimal places	0.0005	0.001
Rounding policy if the number to be displayed is zero but the actual number is non-zero (as in the case above)	Show the most significant digit rounded by the other digits. (0.00055 shows 0.0006	Keep rounding the number to more and more decimal places until a non-zero answer is shown.
SWAP Key	Swaps only when there is something to swap with.	Swaps with INPUT even though nothing may be in INPUT.
Press 12 INPUT +	12, INPUT and PEND is displayed	12, PEND is displayed; INPUT has disappeared.
Press 12 + 3K N =	18	15
Press 12 + 3K N = =	21	18
Press -9.99999999E499 Yx 1 = [DISP] =	999999999999	999999999997
Press 0.00E gives	1E	1.E
Press Sum - with N = 0 allows N to be negative.	No	Yes
Underflow	Displayed at all times when occurring	Only Displayed during TVM and IRR calculations
Amortization Order	Period, Principle, Interest, Balance	Period, Interest, Principle, Balance.
Press [AMORT] [=] [C]	Clears the display	Display remains, press [C] again to clear.
Ambiguous IRR or TVM case	Not Found	Error - Soln
A Statistical Calculation Returns two values	STAT annunciator is shown.	":" is shown and second number placed into INPUT.
Using [STO] for storing cash flows	Pressing [STO][CFJ][0] ...[9] [STO][CFJ][.][0]...[.][4] stores the number on the screen directly into that cash flow. (0-9)(10-14). [STO][CFJ][+] stores into the next cash flow (looping if necessary). [STO][CFJ][-] stores into the previous cash flow, looping where necessary. [STO][CFJ][CFJ] stores into the current cash flow	Store into particular cash flows by modifying the user registers
Using [RCL] to recall cash flows	Press [RCL][CFJ][0] ...[9] [RCL][CFJ][.][0]...[.][4] displays the number on the screen from that Cash flow. (0-9)(10-14). [RCL][CFJ][+] recalls the next cash flow (looping if necessary). [RCL][CFJ][-] recalls the previous cash flow, looping where necessary. [RCL][CFJ][CFJ] recalls the current cash flow.	RCL a user register then RCL CFJ runs through cfj list. There is no looping.
IRR causes calculator to endlessly iterate.	Some situations have been rectified so that the calculator returns a message/error.	Gets caught in an endless loop.
Changing Statistical summary variables	They are only changed by the calculator; the user cannot modify the values	The user can change the values in the user registers.
Self Tests	Only one simple test	Streaming and interactive, which tests keyboard.

This table lists the hardware differences between the HP10B and HP10BII calculators.

Feature	hp 10bii calculator ** new **	hp 10b calculator
Input Key	Single Key Width	Double Key Width
Two Shift Keys (1 for stats)	Yes	Single Shift
On/Off	Separate Key	Shared with C
Errors	Displayed on Annunciators	Displayed using the 7-segment 12-digit display.
Annunciators	20 Annunciators, to handle cash flows, amortization, errors over and above the 10B	5 Annunciators.
Keys	Angled to show shifted function on Actual Key	Flat. Shifted functions are printed above the Key.
Statistical Variables	Attached to corresponding Key	Floating between Keys
TVM.	Top Five, embolden keys, highlighting the task of the 10BII	Keys are just one of many.
Cost Price Margin Markup	Famous Four, embolden keys, highlighting the task of the 10BII	Keys are just one of many.
Margin Markup Keys	Two separate keys. (Software behavior is the same in that they share the same register.)