Pocket and Personal Printing Calculators
Hewlett-Packard introduced the world’s
first pocket scientific calculator in 1972.
Since then, Hewlett-Packard has introduced
several pocket and personal printing cal-
culators with technologically advanced fea-
tures; each with different capabilities for dif-
ferent levels of problem sophistication. To
properly select a calculator, you must con-
sider not only the problems you’re facing
today, but those you’re likely to face tomor-
If your problems are fairly straightfor-
ward but still include coordinate conver-
sions, log and trig functions, the HP-21 may
be just perfect for you. The HP-21 is the
lowest priced scientific pocket calculator
Hewlett-Packard offers, yet it has all the
functions and features you’d expect to find
in a quality scientific pocket calculator.
For repetitive or iterative problems, two
H P calculators are practically “custom
made” for you-the HP-25 and the HP-
25C. These two calculators have identical
programming power and identical prepro-
grammed functions including conditional
tests, full editing, eight addressable
memories, and a great many mathematical
and statistical functions. But the HP-25C
also has a continuous memory that retains
your programs and saves your data even
when you turn the calculator off.
To bridge the gap between scientific and
business calculations, you should consider
the HP-27 Financial/StatisticaI/Scientific,
which gives you every scientific function
we’ve ever offered in a preprogrammed
calculator-plus the added power of statis-
tics and finance. The HP-27 will be ex-
tremely valuable to any scientist, busi-
nessman or engineer whose responsibilities vides the identical power of the HP-97 in the To compliment the Library Application
extend into targeting, budgets, cost analysis, classic pocket size. Used separately-or Pacs, HP has a full line of personal cal-
and other financial and forecasting con- together-these compatible, fully pro- culator accessories to keep your H P cal-
siderations. grammable calculators do the job faster and culator safe and sound. To protect against a
If your problems are more business with less chance for error. “mysterious disappearance” of your H P
oriented, take a look at the HP-22 or the To increase the versatility of your fully calculator, there is a ruggedly-designed,
new HP-10. The HP-22 Business Manage- programmable H P calculator, H P has an ex- key-operated security cradle available to
ment Pocket Calculator provides a desirable tensive library of “Application Pacs.” By protect your investment. The cradle does
combination of financial, mathematical, and using these Application Pacs, you’ll dis- not interfere with normal operations of the
statistical capabilities often used in modem cover that the solutions you require may al- calculator and may be secured via four dif-
business. For the person requiring the per- ready exist. Each program in a pac is fully ferent methods (hardware included with
formance of a desktop machine in a light documented with commented program list- cradle). For desktop models, a six-foot se-
weight, pocket-sized model, the new HP-IO ing allowing the adoption of programming curity cable is available. For outdoor cal-
may be the answer. And the whisper-quiet techniques useful to each application area. culator operations, H P has a hard leather
thermal printer gives you a valuable printed The Application Pacs greatly extend the case to guard against normal environment
record of your calculations. capabilities of the fully programmable mod- conditions encountered in the field.
For the businessman that must evaluate els and significantly increase problem solv- To keep your H P calculator operating at
large numbers of investment alternatives, ing potential. Application Pac topic areas peak efficiency, several different models of
the new HP-92 provides solutions quickly, include: rechargeable battery packs are available to
easily, and accurately. The thermal printing counter untimely power losses. Simply slip
feature gives you an indispensable record of Stat Pac the battery pack into the holder, plug the
time and money solutions. Math Pac holder into the recharger/AC adapter
For the ultimate problem solving power in EE Pac supplied with your calculator, and in six-to-
any field, Hewlett-Packard offers you Business Decisions Pac eight hours you have a fully charged battery.
two compatible, fully programmable Clinical Lab and Nuclear Medicine (HP-67 recharging time, 14-17 hours.)
calculators-the HP-67 Pocket Calculator M E Pac Whichever H P calculator or accessory
and the HP-97 Printing Calculator. The Surveying Pac you select, you can be assured that it is the
HP-97 combines exceptional programming Games Pac finest in its class . . . because the Hewlett-
power-plus a battery-operated printer-all Civil Engineering Packard standard of quality permits nothing
in one self-contained unit. The HP-67 pro- Navigation else.
Scientific Programmable & Scientific Calculators
Models HP-21, HP-25, HP-25C
HP-21 saved, ready for use, until you clear it or enter a new program.
The HP-21 is the lowest-priced scientific pocket calculator H P The 8 data storage registers are also continuous, allowing con-
offers, yet it has all the functions and features you'd expect to find in stants or data to be stored indefinitely, to be available as needed.
a scientific pocket calculator. The HP-21 performs 32 prepro- The HP-25 is identical to the HP-25C but without continuous
grammed functions and operations including logarithms, trig calcula- memory.
tions and polar to rectangular conversions; in either radians or de- HP-25/25C Specifications
grees. The RPN logic system tackles even the most complex prob- Pre-Programmed functions
lems efficiently and gives you continuous and immediate feedback. Trigonometric (all in decimal degrees, radians, or grads): Sin x; Arc
Combining the HP-21's capability with its low cost, you have a Sin x; Cos x; Arc Cos x; Tan x; Arc Tan x.
price/perforrnance ratio that's simply unbeatable. Logarithmic: Log X; Ln X; ex; 10".
HP-21 Specifications Statistical: mean and standard deviation; summations giving n, Zx,
Pre-Programmed functions 2x2, s y , s x y .
Trigonometric (all in degrees or radians): Sin x; Arc Sin x; Other: yx; fi,I/x; T ;x2;%; conversions between decimal hours, de-
Cos x; Arc Cos x; Tan x; Arc Tan x. grees, radians, or grads and hours (degrees)/minutes/seconds; rectan-
Logarithmic: Log x; Ln x; e; lo". gular/polar coordinate conversions, integer/fraction truncatidn; ab-
Other: ys, f , i Ux; T ;rectangular/polar coordinate conversion; solute value; full register arithmetic.
full register arithmetic. Programming features:
49-step program memory; conditional branching based on any of
General eight relational tests (x<y, x2y, xfy, x = y, x<O, xtO, x#O, x = 0);
Memory: one addressable register; four-register operational stack.
direct branching; ability to review or execute programs step-by-step;
Display: U p to 10 significant digits in fixed-decimal notation; up to 8 ability to add or modify program steps; PAUSE and NO-OPERA-
significant digits plus two-digit exponent in scientific notation; full TION program instructions.
display formatting in either mode with selective round-off; indi-
cators for improper operations, low battery. General
Dynamic range: to log9(200 decades). Memory: eight addressable registers; four-register operational
Power: AC: 115 V , f IO%, 50 to 60 Hz. Battery: 2.5 V dc nickel- stack; last-X register.
cadmium rechargeable battery pack. Display: up to IO significant digits in fixed-decimal notation; up to 8
Size: 30 x 68 x 130 mm D (1.2" x 2.7" x 5.1"). significant digits plus 2-digit exponent in scientific or engineering
notation (in engineering notation all exponents are displayed as mul-
HP-21 Scientific Pocket Calculator $80 tiples of k 3 ) ; full display formatting in any mode with selective
roundoff; indicators for improper operations, low battery; line-
Continuous Memory (HP-25C only) number/key matrix program display.
The continuous memory capability of the HP-25C can provide Dynamic range: to los9 (200 decades).
tremendous values in time-saving and convenience to any scientist, Power: AC: 115 V , 5 IO%, 50 to 60 Hz. Battery: 2.5 V dc nickel-
engineer or student who uses a few long programs repeatedly-for cadmium rechargeable battery pack.
example, if 20 percent of your programs will solve most of your Size: 30 H x 68 W x 130 mm D (1.2" x 2.7" x 5.1").
problems. Ordering information Price
The HP-25C retains a program-no matter how often you switch HP-25 Scientific Programmable Pocket Calculator $125
it on and off-by means of sophisticated complementary metal HP-25C Scientific Programmable with Continuous
oxide silicon circuitry (C-MOS). The last program you store is Memory $160
Fm PERSONAL CALCULATORS
Ii Scientific Pocket Calculators
The new HP-19C and HP-29C are a pair of advanced programmable rement/decrement storage register and skip on zero.
calculators with continuous memory. Continuous memory retains a
user’s programs or data, even with the power turned off. The Label addressing: indirect addressing of labels and data storage;
HP-19C combines a full range of scientific functions, advanced pro- relative addressing; three levels of subroutines.
gramming features and RPN logic with a battery powered printer in Editing: single step execution; single step and back step inspection
a convenient hand-held s u e . The HP-29C offers the same features of a program; inseddelete editing; position the calculator at any
and functions in an even smaller “pocket size.” These functionally step in program memory. Pause-review intermediate results or key
identical calculators provide exceptional utility to professionals and in data in the middle of a program.
students in science or engineering fields. General
Specifications Display: fixed decimal, scientific and engineering notation.
Pre-Programmed Functions Print select switch: print only when you desire; print digit entries
Angular:Sin,Cos,Tan,Sin - 1,Cos- 1, Tan- 1; Hours -Minutes - and functions automatically; or trace an executing program.
Seconds Conversion to decimal hours; polar/rectangular conver- HP-19C Physical specifications
sion; degrees, radians, grads angular modes. Power: 115 Vac (or 230 Vac) lo%, SO to 60 hz.
Logarithmic: Log, IOx, Ln, e x . Size: 40 H x 88 W x 165 mm D (1.6” x 3.45” x 6.5”).
Statistics:Summationsn,Zx,Zy,ZxZ, Zxy; deletion of un-
HP-29C Physical specifications
wanted data; mean, standard deviation
Other: +, -, i, , ys, x ’ , ~ ,fi,
x l/x, %. Integer truncation; Power: AC 115 (or 230 V) IO%, 50 to 60 hz.
Size: 30.2 H x 68.3 W x 130.2 mm D (I3/i6” x 211/16”X 5’/8‘3.
fraction truncation; absolute value.
Programming features: 98 steps of continuous memory (all func- Ordering information Price
tions merged); 16 continuous memory data storage registers; 14 vol- HP-19C Printing Programmable with Continuous $345
atile data storage registers; four-register stock; last-X register. Memory
x + y, x = y, x >y, x s y ; x + 0, x = 0, x > O , x to; Inc- HP-29C Programmable with Continuous Memory $195
PERSQNAL CALCULATORS, A
Fully programmable calculators ' 1
Models HP-97, HP-67
Exceptional programming power and ease of use for "Smart" magnetic card reader frees your mind by au-
lengthy, repetitive calculations. tomatically recording the display mode setting, angular
mode setting, and the status of the four flags when you
record your program.
HP-67 Fully-Programmable Pocket Calculator HP-97 Fully-Programmable Printing Calculator
These are the most powerful personal calculators Hewlett- definable labels; Three levels of subroutines (GSB).
Packard has ever made. The HP-97 combines exceptional pro- Conditionals: x = y, x # y, x>y, x s y , x # 0, x = 0, x<O, x>O;
gramming power-plus a battery-operated printer all in one self- Fourflags; Increment, decrement storage registers and skip on zero.
contained unit. The HP-67 provides the identical programming Editing: single step execution; Single step and back step inspection
power of the HP-97 in the classic pocket size.
The HP-67 is completely compatible with the HP-97. Programs -
of a program; Insert/Delete editing. Position the calculator at any
step in program memory (GTO nnn).
recorded on the unit may be loaded and executed on the other - Other Programming features
even the print commands (e.g., when the HP-67 executes a Print X PAUSE to review intermediate results, key in data or load magnetic
command, it pauses, and displays the current result). cards.
Used separately - or together - these compatible fully pro-
grammable calculators do the job faster and with less chance for General
Memory: 224 steps of program memory (all functions are merged
error. and occupy only one step of program memory); 26 data registers;
Four-register automatic memory stack; Last-X register.
Display: up to 10 significant digits with selective round-off to de-
HP-97/67 specifications sired number of places in fixed decimal notation; up to 10 significant
Pre-programmed functions digits plus two digit exponent and appropriate signs in scientific and
Mathematical: Sin, Cos, Tan, Sin l , Cos l , Tan l ; Degrees, ra- engineering notation (where values are displayed with exponents
dians, grads angular modes; Coordinate conversion; Degreekadian that are multiples of 3).
conversion; Hour/minutes/seconds addition and conversion to de- HP-97 Printing features
cimal hours; Log, l@, Ln, ex; Integer truncation; Fraction trunca- Quiet, thermal printer lets you record and level your calculations.
tion; Absolute value; Rounding; +, -, x , i, xz, l / ~ fi,
yx, , N!, Print mode switch selects three printing modes. In addition you can
%, % C H , v . print and label the contents of the stack registers, the primary data
Statistical: mean and standard deviations; Summations n, Hx, Hx2, storage registers, program memory, and the display.
Sy, Hyz, Hxy; Deletion of unwanted data. Dynamic range: lo-$$ to IOw (200 decades).
Programming features HP-97 Power: 90-127 Vac or 200-254 Vac, 50 to 60 Hz or 5.0 V dc
Card Reader features: Record/Load all data registers; Load nickel cadmium rechargeable battery pack.
selected data registers; Record/Load entire program memory; HP-67 Power: 86-127 Vac or 172-254 Vac, 50 to 60 Hz or 3.75 V dc
Merge program subsections; Angular mode, flag settings, and dis- nickel cadmium rechargeable battery pack.
play status are recorded with program recording and reset with pro- HP-97 Size: 63.5 H x 228.6 W x 203.2 mm D (2.5" x 9" x 8").
gram loading; User is prompted for proper operation when loading; HP-67 Size: 18 to 34 H x 81 W x 152.4 mm D (0.7" to 1.4" x 3.2" x
Card reader operations can be initiated manually or under program 6").
control (except program recording). Ordering information Price
Addressing: label addressing; indirect addressing of labels and data HP-97 Fully Programmable Printing Calculator $750
storage; Relative addressing; 10 user-definable keys or 20 user- HP-67 Fully Programmable Pocket Calculator $450
Business & Scientific Pocket Calculators
HP-10, HP-22, HP-27
to mee ancial
H P- IO
play chrl uc uDcu u1 cwrrJu~~CLLw~.
with the printer. In addition to the ac-
ing balance of a loan.
yc’1Vu” u1 a ,“all, ,e,,,a,,,- AILwl,cJ ,, A. \LuLuLu ..”.
value; internal rate of return; percent,
cumulator, a memory is available to store Statistical: mean and standard deviation; percent difference, and percent of total.
and recall a constant-or if your prefer, to linear regression; linear estimate; summa- Statistical: 2+ accumulates x, y, xa, ye,
maintain a separate running total of your tions giving n, Xx, 8 y , Xx; Xxy. xy, and n, 2- deletes unwanted data;
calculations. The HP-10 performs instant Percent: %, A%, percent one number is linear regression; correlation coefficient;
quotations, commisssions dividends,, per- of another; percent one number is of a to- mean and standard deviation; variance;
centage for taxes. The buffered keyboard, tal; markups; discounts. normal distribution factorial.
add mode, fixes and floating point notation, Other: Ln; eS; ys; d x ; full register Tan, Sin , Tan ;
arithmetic. scientific: Sin, Cos, 1
and the printer separator add up to making namranr
,aULaIIJ,C grads angular
the new HP-10 the most powerful machine General modes; Ln, e , log, lo”,y“. xz, Ilx, n, +,
in its class. Memory: 10 addressable registers; five fi- -, X , +,+ H.MS,+ H , H.MS*; Coor-
Keyboard features: Paper advance. add to nancial reeistes: four-register operational dinate conversion.
iind subract from memory, clear entry, ii&jkI~- ~~
D - - ~ - - - I
E:lear all, print data, print separator, printer to l ~ ~
~ i ~up ~ 10 significant :digits with Memory: 10 addressable registers; five fi-
indlor display selector. o
selective round-off t’ desired number of de- nancial registers; four-register automatic
Iirithmetical: percent, multiplication and cimal places (0 to 9) in fixed-decimal nota- memory stack; and a Last-X register.
Clivision, subtraction, addition. tion; 8 significant dilzits plus two-digit expo- Clearing options: clear the display; clear
ILIP-10* .Specifications ,
.._~ nent and appropriate signs in scientific nota-
.- ..-. ..-..--.-. : the stack; clear statistical registers; clear
I IJ v ac (or
L ~ Uv
J U LO
~, ._. ..nproper operations, low
tinn. indicatnrc fnr i r addressable registers; clear the status of the
60 Hz. battery. financial registers; clear the prefix keys.
Size:40H x 88W x 165mmL Dynamic range: 10 to 10 (200 decades). Display: up to 10 significant digits in futed-
Power: AC: 115 V, +IO%, 50 to 60 Hz. decimal notation; up to 8 significant digits
HP-10 Business Printing plus 2-digit exponent in scientific or en-
Calculator gineering notation (values are displayed with
x 2.7” exponents that are multiples of 3); full dis-
The HP-22 bus .~
olav formatting in any mode with selective
round-off; indicators- for improper opena-
calculator puts ar
nancial, mathema 8 125 tions, low battery.
Dynamic range: 10 to 10 (200 decades).
tions at your fing Power: AC: 115 V, +IO%, 50 to 60 H: 2,
handle everything Battery: 2.5 V dc nickel cadmium rechargie-
to complex time-value-ot-money computa- :ien-
tific Calculator is the most powerful prepro- able battery pack.
tions. You can even handle planning fore- Size: 30.2 H x 68.3 W x 130.2 mm L (1.:2”
casting and decision analysis. And, you can grammed pocket calculator Hewlett-Pack a d
has ever built. Its highly sophisticaicu
-.-> .. -.. .. 5 1 ,.
x 3 I” x ”._1
approach business problems in a variety of
ways to amve at intelligent decisions and design effectively integrates financial, sta- HP-27 Financial/
recommendations based on facts. tistical, and scientific functions-thus elim- Statistical/Scientific $175
Business Printing Calculator
[BOOK] - Stores book value of an asset.
[LIFE] - Stores depreciable life of an asset.
[SAL1 - Stores salvage value of an asset.
[N 11 - Stores the starting year for a depreciation
IN21 - Stores the ending year for a depreciation
[%I - Computes percent.
[A%] - Computes percent of change between two
[%HI - Computes percent one number is of a total.
Calendar - October 15, 1582 to November 25, 4046.
[Date + Days] - Computes a future or past date from a given
date and a fixed number of days.
[A Days1 - Computes number of days between dates.
[g] [PRINT X] - For a given date, prints its day of the week.
[C+l - Automatically accumulates two variables
for statistics problems: Zx, Xy, ExZ,Xy2,Xxy,
and number of terms.
2 - Deletes statistical variables for changing or
The new HP-92 Investor is a portable printing financial calculator correction.
for the person that must evaluate a large number of investment [XI - Computes mean for x and y.
alternatives quickly, easily, and accurately. The HP-92 solves prob- [SI - Computes standard deviation for x and y.
lems involving time and money: compound interest, balloons, dis- [L.R.] - Linear regression or trend line.
counted cash flow, bonds and notes, depreciation, net present value, [?I - Linear estimate.
internal rate of return. The flick of a switch engages the quiet ther- [rl - Correlation coefficient.
mal printer that provides an indispensible record of your calcula- Storage
tions. 30 storage registers. Printing and clearing functions. And with [ST01 - Stores number in one of 30 storage registers.
all its powerful computational capability, the Investor fits into a Performs storage register arithmetic upon
standard-sized briefcase-an invaluable feature for the person on 10 of the registers.
the go. WJ-1 - Recalls number from one of 30 storage reg-
HP-92 Specifications isters.
Compound Interest Printing and Clearing
- Stores or computes number of periods. [AM0RT] - Prints amortization schedule.
[nl - Prints all values for compound interest.
[12XI - Converts number of periods from months to LIST:
years. [FINANCE] - problems, bonds and notes.
til - Stores or computes interest rate per com- [PRINT XI - Prints contents of display.
pounding period. LIST: [STACK] - Prints contents of operational stack.
 - Converts interest from yearly to monthly LIST: [REG] - Together print contents of 30 addressable
rate. - [XI storage registers.
- Stores or computes present value (initial [CLXI - Clears display.
cash flow at the beginning of a financial [CL FIN] - Clears financial functions for new problem.
problem). [CL REG] [CLH] - Together clear 30 addressable storage regis-
tFV1 - Stores or computes future value (Final cash ters.
flow at the end of a financial problem). [CLEAR] - Clears entire calculator-display, opera-
[PMTI - Stores or computes payment amount. tional stack, all storage registers and finan-
Discounted Cash Flow Analysis cial functions.
- Computes net present value of future cash Number Entry and Manipulation
[NPVI [ENTER t ] - Separates numbers for arithmetic and other
- Computes internal rate of return of series of functions.
[IRRI - Changes sign of displayed number or expo-
up to 30 future cash flows. [CHSI
Bonds and Notes nent.
[PRICE] - Stores or computes price of bond or note. [x *y] [R 1 ] [R t ] - Functions to manipulate numbers in opera-
[YIELD] - Stores or computes yield (percentage) of a tional stack.
bond or note. [EEXI - Enter exponent of 10.
- Stores the issue and settlement dates of [RNDI Rounds actual number in display to number
[IS, STI seen in display.
bond or note for calculations.
[MTI - Stores the maturity date of a bond or note. [LAST XI - Recalls number displhyed before last opera-
[CALL] - Stores the call price or redemption value of tion back to display.
a bond or note. Mathematics
[CPN1 - Stores the coupon amount (percentage) for [Y"l - Raises number to power.
bond or note calculations. [eX] - Natural antilogarithm.
Depreciation [LNI - Natural logarithm.
WJ-1 - Calculates straight-line depreciation M I - Square root.
schedule. [ W - Reciprocal.
[SOYD] - Calculates sum-of-the years' digits depre- [+I [-I [XI [ A ] - Arithmetic functions.
ciation schedule. Power: AC: 115 or 230 V + lo%, 50 to 60 Hz.
[DBI - Calculates declining balance depreciation Size: 63.5 H x 229 W x 203 mm D (2.50" x 9" x 8").
schedule. HP-92 Investor $625