hp48gii

Model:	48GII, page is based on 39G+, calculator is based on 48G

General:
	Name:			?
	Code-Name:		Mid Apple
	Family:			Chaglemange
	Logic:			algegraic, RPL, textbook
	Features:		?
	Firsts:			infinite precision integers (w/49G+)
	Introduction:
		Date:		2003-10-28
		Price:		$130
	Discontinuation:
		Date:		in production
		Price:		?
	Production-Run:		?

Display:
	Type:			LCD, bit-mapped
	Size:			64 x 131 pixels
	Number-Formats:		sign, 12 mantissa, ., exp sign, 3 exp
	Annunciators:		?

Data:
	User-Visible:
		Smallest:	1E-499
		Largest:	9.99999999999E499
		Signif.-Digits:	12
	Internal:
		Smallest:	1E-49999
		Largest:	9.99999999999999E49999
		Signif.-Digits:	15
	Data-Types-and-Sizes:	real, 11 bytes?
				infinite precision for integers
				symbolic matrices

Memory:
	Named-Registers:	n/a
	Flags:			256 total
	Register-Usage:		n/a
	Numbered-Registers:	?
	Program-Steps:		n/a
	Program-Editing:	insert?
	Program-Display:	alpha
	User-RAM-Bytes:		128K
	Total-RAM-Bytes:	128K
	ROM-Bytes:		?
	Machine-State:		memory
	File-Types:		none

Physical:
	Technology-Used:	?
	Processor:		48MHz ARM9
	Chip-Count:		?
	Power-Source:		AAA x 3 + CR2032
	Continuous-Memory:	yes
	Expansion-Ports:	none
	I/O-Ports:		Irda, RS232
	Clock:			?

	Length:			184.0 mm
	Width:			87.0 mm
	Height:			23.5 mm
	Weight:			220g
	Temperature-Range:
		Operating:	?
		Charging:	?
		Storage:	?

Keyboard:
	Switches:		none
	Shift-Keys:		Shift Left, black, above left
				Shift Right, red, above right
				Alpha, blue, right
	User-Defined-Keys:	all

Key-Arrangement::

** ** ** ** ** **
** **    **
      **    **
** **    **
** ** ** ** **
** ** ** ** **
** ** ** ** **
** ** ** ** **
** ** ** ** **
** ** ** ** **
** ** ** ** **

Key-Labels-Base-Keyboard::

F1	F2	F3	F4	F5	F6
APPS	MODE	TOOL		^
			<		>
VAR	STO>	NXT		v
HIST	EVAL	'	SYMB	<-
 x
Y	\v/x	SIN	COS	TAN
EEX	+/-	X	1/X	\:-
ALPHA	7	8	9	x
shft l	4	5	6	-
shft r	1	2	3	+
ON	0	.	SPC	ENTER

CANCEL key in black below ON

Key-Labels-Shift-Left-black-above-left::

Y=	WIN	GRAPH	2D/3D	TBLSET	TABLE
FILES	CUSTOM	;		[]
			[]		[]
UPDIR	RCL	PREV		[]
CMD	PRG	MTRW	MTH	DEL
 x	 2
e	x	ASIN	ACOS	ATAN
  x
10	\=/	=<	>=	ABS
USER	S.SLV	EXP&LN	FINANCE	[] (brackets)
[]	CALC	MATRICES CONVERT ()
[]	ARITH	DEF	#	{}
CONT	\oo	::	\pi	ANS


Key-Labels-Shift-Right-red-above-left::

[]	[]	[]	[]	[]	[]
BEGIN	END	|		[]
			[]		[]
COPY	CUT	PASTE		[]
UNDO	CHARS	EQW	CAT	CLEAR
LN	x\v/y	\GS	\Gd	\.S
LOG	\	<	>	ARG
ENTRY	NUM.SLV	TRIG	TIME	""
[]	ALG	STAT	UNITS	_
[]	CMPLX	LIB	BASE	<< >>
OFF	->	<-|	'	->NUM


Key-Labels-Alpha-black-right::

A	B	C	D	E	F
G	H	I		[]
			[]		[]
J	K	L		[]
M	N	O	P	[]
Q	R	S	T	U
V	W	X	Y	[]
[]	[]	[]	[]	[]
[]	[]	[]	[]	[]
[]	[]	[]	[]	[]
[]	[]	[]	[]	[]

The "Z" key appears to be missing, although that could be due to the
quality of the photograph that I worked from.

Programmable-Operations::

Vector and matrix operations

- rectangular/polar
- matrix operations: includes symbolic matrices
- matrix editor 

Graphing features

- 2-D function, polar, parametric plot
- 3-D differential equation, bar plot
- histogram, scatter plot
- find: intersect, extremum, slope, area
- zoom, trace, co-ordinates, shade

Math features

- +, -, x, \:-, \v/, 1/x, +/-, ln, e^x, x\v/y
- y^x, log, 10^x, x^2, %, \pi, n!
- fractions
- degrees, radians, or grads mode
- trignonometric functions/inverses
- hyperbolics/inverses
- HP Solve application (root finder)
- numeric integration
- symbolic integration (simple cases)
- numeric differentiation
- symbolic differentiation (simple cases)
- complex number functions
- polynomial root finder, Taylor series
- absolute value, round
- integer & fractional part of a number
- modulo function, floor, ceiling
- CAS system

Scientific Features

- decimal hrs/hrs min sec conversions
- polar/rectangular conversions
- angle conversions
- base conversions and arithmetic
- unit conversions
- bit, Boolean graphics
- display and printer graphics
- onboard library with more than 180 scientific and engineering
  constants and units

Statistical Features

- \GSx, \GSx^2, \GSy, \GSy^2, \GSxy
- sample standard deviation, mean
- population standard deviation
- linear regression
- combinations, permutations
- weighted mean
- edit, save, name, list
- curve fit (lin, log, exp, pow)
- plot statistical data
- hypothesis tests
- confidence intervals

Programming Features

- root finder: HP Solve
- number of programs/formulae: memory
- levels of subroutines: memory
- branching
- alpha prompts in programs
- input forms, alpha string manipulation
- indirect addressing
- index looping
- alpha listing
- menus, prompts
- alpha messages
- user mode / redefinable keyboard

Other

- notepad
- graphics functions with interactive graphics
- over 2300 built-in functions

Non-Programmable-Operations::

?

Menus::

?

Bugs/ROM-Versions::

none

Notes::

Manufactured by Kinpo (http://www.kinpo.com.tw).

Expanded to 256k in 2008.  It also now has both serial and USB ports.
Power is now 4 AAA cells.