hp37e

Model:	-37E

General:
	Name:			Financial Calculator
	Code-Name:		Parsley
	Family:			Spice, Series 30, Series E
	Logic:			RPN
	Features:		business
	Firsts:			(with -32E)
	Introduction:
		Date:		1978-07-01
		Price:		$75
	Discontinuation:
		Date:		1983-07-01
		Price:		$45
	Production-Run:		?

Display:
	Type:			LED, 7 segment
	Size:			1 line x 10 chars
	Number-Formats:		sign,  10 mantissa
				sign, 7 mantissa, ., exp sign, 2 exp
	Annunciators:		raised .	battery low

Data:
	User-Visible:
		Smallest:	1E-99
		Largest:	9.999999999E99
		Signif.-Digits:	10
	Internal:
		Smallest:	1E-99
		Largest:	9.999999999E99
		Signif.-Digits:	10
	Data-Types-and-Sizes:	real, 7 bytes

Memory:
	Named-Registers:	X, Y, Z, T, N, I, PV, PMT, FV, 0-6
	Flags:			none
	Register-Usage:		R1	\GSn
				R2	\GSx
				R3	\GSx^2
				R4	\GSy
				R5	\GSy^2
				R6	\GSxy
	Numbered-Registers:	7
	Program-Steps:		none
	Program-Editing:	none
	Program-Display:	none
	User-RAM-Bytes:		112
	Total-RAM-Bytes:	?
	ROM-Bytes:		?
	Machine-State:		prefix key state
				stack lift enable
				display mode
				registers
	File-Types:		none

Physical:
	Technology-Used:	?
	Processor:		?
	Chip-Count:		?
	Power-Source:		custom nickel-cadmium 2 AA cell pack, A/C
	Continuous-Memory:	yes
	Expansion-Ports:	none
	I/O-Ports:		none
	Clock:			none

	Length:			?
	Width:			?
	Height:			?
	Weight:			?
	Temperature-Range:
		Operating:	0 to 45 deg C
		Charging:	15 to 40 deg C
		Storage:	-40 to 55 deg C

Keyboard:
	Switches:		OFF / ON
				BEGIN / END
	Shift-Keys:		f, yellow, above
	User-Defined-Keys:	none

Key-Arrangement::

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

Key-Labels-Base-Keyboard::

n	i	PV	PMT	FV
STO	RCL	%	%T	f
ENTER^	CHS	x<>y	CLx
-	7	8	9
+	4	5	6
x	1	2	3
\:-	0	.	\GS+

Key-Labels-f-gold-above::

				 x
12x	12\:-	1/x	\v/x	y
 x
e	LN	\GD%	PRICE	[]
AMORT	CL FIN	Rv	CL ALL
x-	[]	[]	[]
s	[]	[]	[]
y^,r	[]	[]	[]
n!	[]	[]	\GS-

Programmable-Operations::

none

Non-Programmable-Operations::

%		percent of
%T		percent of total
+		addition
-		subtraction
shift .		scientific notation mode (6 decimal places)
0-9, .		enter digit or decimal point
shift 0-9	fixed decimal mode
1/x		reciprocal
12x		store 12 x X as n
12\:-		store X \:- 12 as i
AMORT		amorization of payments (all amounts rounded to display),
		updates PV and N
CHS		change sign
CL ALL		clear all registers
CL FIN		clear financial registers
CLx		clear X
ENTER^		enter
e^x		natural exponentiation
f		f-shift
FV		compute future value
i		compute interest
LN		natural logarithm
n		compute number of periods (rounded to integer)
n!		factorial
PRICE		compute selling price given markup
PV		calculate the Present Value
RCL 0-6, n, i, PV, PMT, FV	recall from register
Rv		roll the stack down
s		compute standard deviation
STO +,-,x,\:- 0-6		storage arithmetic
STO 0-6, n, i, PV, PMT, FV	store in register
STO ENTER^	self-test, does not clear memory
x		multiplication
x-		compute average
x<>y		exchange x and y
y^,r		linear estimate, correlation
y^x		power
\:-		division
\GD%		percent change
\GS+		add to statistics
\GS-		subtract from statistics
\v/x    	square root

Menus::

none

Bugs/ROM-Versions::

none

Notes::

price changes:

	1982-03-01	$90
	1983-04-01	$45