RPN-67 - An HP-67/97 Simulator for iOS

Program Library 2 for RPN-67 & 97

Please note:
For copyright reasons, documentation is not available for download. User's manuals in PDF format for all programs listed below
are available from The Museum of HP Calculators.

You may import cards into RPN-67 or RPN-97 – no manual conversion is required.
See section "Sharing" to learn how to load cards.

Programs marked

are included in the free version RPN-67 NP.
Programs of pacs with a card image are loaded using photo-realistic HP magnetic cards (courtesy of Mark S. Puscas.)

HP Games Pac I
01 - Game of 21 Aug 17, 2016	This card game is also known as blackjack.
02 - Dice Aug 17, 2016	This includes the game of "Craps" as well as a dice roller.
03 - Slot machine	The familiar one armed bandit.
04 - Submarine Hunt Aug 17, 2016	Find and then sink the moving submarine with your depth charges.
05 - Artillery	Can you locate and destroy the moving target before it destroys you?
06 - Space War Aug 17, 2016	Your mission: Search out and annihilate the 3 evil Alglogs before time and energy are gone.
07 - Super Bagels Nov 24, 2016	Based on "Mastermind." How fast can you guess the secret number?
08 - Nim_k Aug 17, 2016	Who will pick the last object from the last pile, you or the machine?
09 - Queen Board	You and the calculator take turns moving a chess queen to its target. The one who moves last, wins.
10 - Hexapawn Apr 25, 2015	You and the 67/97 command armies of 3 chess pawns each. Caution: The calculator learns from its mistakes. Original HP-65 version written in 1975 by RPN-67 user John R. Rausch.
11 - Tic-Tac-Toe Aug 17, 2016	Your best hope is to play the machine to a draw.
12 - Wari	You have a reasonable chance of beating the HP-67/97, but beware of a smart human. This ancient game is also known as Man-Kalah.
13 - Racetrack	Up to 5 players can race. Be alert to the differences between velocity and acceleration.
14 - Teaser Aug 17, 2016	Changing from one pattern to the other looks easy, but ... Game Description (from "What To Do After You Hit Return", 1975)
15 - Golf	The HP Country Club course is challenging, but a duffer with his handicap can beat a champion.
16 - The Dealer	This shuffles and deals a deck of cards to 4 people; it also calls Bingo.
17 - Bowling Scorekeeper Aug 17, 2016	Tired of keeping score and missing the game? Here's your answer for up to 10 bowlers.
18 - Biorhythms	Calculates cycle values for any date, and tells which of the next 33 days are critical, maximum or minimum days.
19 - Timer	Offers 2 visible timers, a count-up and count-down timer, and allows splits to be taken.

HP Math Pac I
01 - Factors and primes	Finds prime factors of an integer; finds all primes between two numbers.
02 - GCD, LCM, decimal to fraction	Finds greatest common divisor and least common multiple of two integers; finds nearest fractional approximation for a decimal number.
03 - Base conversions May 21, 2013	Converts a number in base b to its equivalent in base B (b, B < 100).
04 - Optimal scale for a graph; plotting	Finds a "nice" scale for graphing a function; generates ordered pairs for a graph.
05 - Complex operations	Arithmetic and several functions for complex numbers.
06 - Polynomial solutions	Solves polynomial equations up to 5^th degree.
07 - 4 X 4 matrix operations (2 cards)	Computes determinant and inverse of 4 x 4 matrix, solves 4 simultaneous equations in 4 unknowns, by Gaussian elimination.
08 - Solution to f(x) = 0 on an interval	Uses combination of bisection and secant method to guarantee rapid convergence to a root.
09 - Numerical integration Jul 19, 2017	Trapezoidal rule and Simpson's rule for discrete case; Simpson's rule for functions known explicitly.
09a - Numerical integration Jun 4, 2019	Trapezoidal rule and Simpson's rule for discrete case; Simpson's rule for functions known explicitly. This version contains a fix to run correctly on RPN-67/97 versions up to the date shown at left.
10 - Gaussian quadrature	Uses the six-point Gauss-Legendre quadrature method to find integrals over finite or infinite intervals.
11 - Differential equations	Solves first- and second-order differential equations by the fourth-order Runge-Kutta method.
12 - Interpolations	Linear, Lagrangian, and finite difference.
13 - Coordinate transformations	Two- and three-dimensional translation and rotation of axes.
14 - Intersections	Line-line, line-circle, circle-circle.
15 - Circle Computations	Circle determined by three points; equally spaced points on a circle.
16 - Spherical triangles	Solutions to six cases of spherical triangles.
17 - Gamma function	Computes Γ(x) for 1 ≤ x ≤ 70.
18 - Bessel functions, error function	Computes the value of the Bessel functions J_n(x) and I_n(x); computes error function and complementary error function.
19 - Hyperbolics	Finds hyperbolic functions and their inverses.

HP M.E. Pac I
01 - Vector Statics	Performs basic vector operations of addition, cross product, and dot product, and finds the angle between vectors.
02 - Section Properties (2 cards)	The area, centroid, and moments of an arbitrarily complex polygon may be calculated using this program. Sketch
03 - Stress on an Element	Reduces data from rosette strain gage measurement and performs Mohr circle analysis.
04 - Soderberg's Equation for Fatigue	Solves for anyone of the seven variables of Soderberg's equation for fatigue.
05 - Cantilever Beams	Calculates deflection, slope, moment and shear for point, distributed, and moment loads applied to cantilever beams.
06 - Simply Supported Beams	Calculates deflection, slope, moment, and shear for point, distributed, and moment loads applied to simply supported beams.
07 - Beams Fixed at Both Ends	Calculates deflection, slope, moment, and shear for point, distributed, and moment loads applied to beams with rigidly fixed ends.
08 - Propped Cantilever Beams	Calculates deflection, slope, moment, and shear for point, moment and distributed loads applied to propped cantilever beams. Sketch
09 - Helical Spring Design	Performs one or two point design for helical compression springs. Sketch Table 1 Table 2
10 - Four Bar Function Generator	Program designs four bar systems which will approximate an arbitrary function of one variable. Sketch 1 Sketch 2
11 - Progression of Four Bar System	Calculates angular displacement, velocity, and acceleration for the output link of a four bar system. Sketch 1 Sketch 2
12 - Progression of Slider Crank	Calculates displacement, velocity, and acceleration of the slider and angular velocity and acceleration of the connecting rod for the progression of a slider crank system. Sketch
13 - Circular Cams	Computes parameters necessary for design of harmonic, cycloidal, circular cams with roller, flat or point followers.
14 - Linear Cams	Computes the parameters necessary for design of harmonic, cycloidal, or parabolic profiles for linear cams with roller followers.
15 - Gear Forces	Computes the reaction forces resulting from torque applied to helical, bevel, and worm gears.
16 - Standard External Involute Spur Gears	Calculates parameters necessary for the design, manufacture, and testing of standard, external, involute, spur gears.
17 - Belt Length	Computes belt length around an arbitrary set of pulleys. Sketch Example 1
18 - Free Vibrations	Calculates an exact solution to the differential equation for a damped oscillator vibrating freely.
19 - Vibration Forced by F₀cos ωt	Finds the steady-state solution for a damped oscillator forced by F₀cos ωt.
20 - Equations of State	Ideal gas relation plus Redlich-Kwong model of real gas behavior.
21 - Isentropic Flow for Ideal Gases	Replaces isentropic flow tables for ideal gases in converging-diverging passages.
22 - Conduit Flow	Calculates velocity or pressure drop for incompressible viscous flow in conduits.
23 - Heat Exchangers (4 card sides) June 30, 2014	Performs analysis of counter-flow, parallel-flow, parallel-counter-flow and cross-flow (fluids unmixed) heat exchangers.

HP Navigation Pac I

Course Planning Programs
01 - Estimated Time of Arrival June 30, 2014	An interchangeable solution involving speed, time, and distance.
02 - Great Circle and Rhumb Line Navigation June 30, 2014	Computes great-circle distance and initial course. Produces one or more rhumb lines approximating the great circle.
03 - Dead Reckoning	Predicts or keeps track of your dead reckoning position.
04 - Velocity triangle and Course to Steer	An interchangeable solution for the vector addition problem. Also computes course to steer given boat speed and desired destination. Sketch 1 Sketch 2

Celestial Navigation Programs
05 - Star Sight Planner (3 cards) Jan 4, 2015	Produces a list of available stars given location, date and time. Also gives approximate time of middle of morning and evening twilight periods.
06 - Almanac Interpolator	Interpolates in Almanac for position of any body and reduces sight as well. Can be used to compute sextant setting for difficult-to-see objects.
07 - Sun Line of Position	Computes a line of position from a Sun sight. This program is virtually a perpetual Sun almanac.
08 - Star Line of Position (7 cards)	Computes a line of position from a star sight. This program is virtually a perpetual star almanac. Six data cards contain almanac data on all 57 navigational stars plus Polaris.
09 - Bearing Line of Position	Produces a fix from bearing on two objects. May be used to provide a line of position.
10 - Two-Angle Line of Position	Produces one or two lines of position for the Position Fixing program.
11 - Fix from Two Line of Position	Uses two lines of position from any combination of above programs to compute a fix. Also computes running fixes.

Miscellaneous Programs
12 - Radar Plotting - Closest Point of Approach	Tracks two vessels simultaneously, computing range, bearing, and time of CPA. Also computes new course to steer to avoid another vessel by a specified distance.
13 - Distance by Horizon Angle	Computes the distance to an object of known height either beyond or short of the horizon. Also can be used with vertical angles of objects.
14 - Beating to Windward	From measurements made on your boat, your speed-made-good and course-made-good are calculated. Then time to the lay line, course and speed-made-good on the next tack, and time to the mark are computed. Table Sketch 1 Sketch 2

HP Stat Pac I

GENERAL STATISTICS
01 - Basic Statistics for Two Variables	Basic statistics for two variables, grouped or ungrouped.
02 - Factorial, Permutation and Combination	Calculate factorial (extended range), permutation, and combination.
03 - Moments, Skewness and Kurtosis (For Grouped or Ungrouped Data)	Moments, Skewness and Kurtosis are calculated for general (geometrical) description of a distribution, symmetry, relative peakness or flatness, etc.
04 - Random Number Generator	Generate up to 500,000 different numbers.
05 - Histogram	A histogram program for 24 intervals of equal width between specified upper and lower limits.

ANALYSIS OF VARIANCE
06 - Analysis of Variance (One Way) Dec 23, 2016	This program is used to test the observed differences among k sample means.
07 - Two Way Analysis of Variance	The row effects and the column effects are tested independently in the analysis of the total variability of a set of data.
08 - Analysis of Covariance (One Way)	This program tests the effect of one variable separately from the effect of the second variable.

DISTRIBUTION FUNCTIONS
09 - Normal and Inverse Normal Distribution	Polynomial approximation is used to calculate normal and inverse normal distribution.
10 - Chi-Square Distribution	This program evaluates the chi-square density. A series approximation is used to evaluate the cumulative distribution.
11 - t Distribution	This program evaluates the t density function and the cumulative distribution for a given x and degrees of freedom v.
12 - F Distribution	This program evaluates the integral of the F distribution for given values of x(>0), degrees of freedom v₁, v₂, provided either v₁ or v₂ is even.

CURVE FITTING
13 - Multiple Linear Regression	Linear regression for two independent variables, using least squares method.
14 - Polynomial Approximation	This program approximates in the least square sense the function f(x) by a polynomial of degree m, where 2 ≤ m ≤ 4. Data from equally spaced points are required.

TEST STATISTICS
15 - t Statistics	Paired t statistic tests the null hypothesis H₀: μ_l = μ₂ for two observations. t statistic for two means tests the null hypothesis H₀: μ_l - μ₂ = d for two independent random samples.
16 - Chi-Square Evaluation	This program calculates the value of Χ²: statistic for the goodness of fit test.
17 - Contingency Table	2 x k and 3 x k contingency tables test the null hypothesis that two variables are independent.
18 - Spearman's Rank Correlation Coefficient	This program tests whether 2 rankings are substantially in agreement with one another.

QUALITY CONTROL
19 - x̅ and R Control Chart	x̅(mean) and R (range) are used to decide periodically whether a process is in statistical control.
20 - Operating Characteristic Curves	This program evaluates the probability P_a of acceptance for a single sampling plan with finite or infinite lot size.

QUEUEING THEORY
21 - Single- and Multi-Server Queues	Queueing theory for infinite customers and finite customers.

HP Surveying Pac I
01 - Traverse, Inverse and Sideshots	Reduction of field traverse data with closure and area calculation. Sketch
02 - Traverse Adjustment	Adjustment of traverses by compass rule or Crandall's rule. Table
03 - Intersections	Bearing-bearing, bearing-distance and distance-distance intersections and offset from a point to a line. Figure
04 - Curve Solutions	Calculation of parameters of circular curves. Sketch
05 - Horizontal Curve Layout	Calculation of field data for layout of horizontal circular curves. Figure
06 - Spiral Curve Layout	Calculation of field data for layout of spiral transition curves. Figure 1 Figure 2
07 - Vertical Curves and Grades	Station and elevation calculations for vertical curves and grades. Sketch
08 - Resection	Solution of the "three point problem." Sketch
09 - Two Instrument Radial Survey	Location of a point using a distance meter and theodolite. Sketch
10 - EDM Slope Reduction	Reduction of slope distances measured with an Electronic Distance Meter. Sketch
11 - Stadia Reduction/3-Wire Leveling	a. Reduction of Stadia observations to distance and elevation. Figure 1 b. Calculation of elevations for a line of wire levels. Figure 2
12 - Taping Reduction/Field Angle Check	a. Correction and reduction of taped distances. b. Reduction of field angle data.
13 - Azimuth of the Sun	Calculation of the sun's azimuth from a solar observation. Example
14 - Predetermined Area Corrected version, May 16, 2016	Location of one side of a land parcel to enclose a specified area. Figure 1 Sketch 1 Figure 2 Sketch 2-1 Sketch 2-2
15 - Earthwork	Calculation of volume by average end area and volume of a borrow pit. Sketch 1 Sketch 2
16 - Coordinate Transformation	Scaling, rotation and translation of coordinates from one system to a second. Table
17 - State Plane Coordinates—Lambert	Conversion of geographic coordinates to and from state plane coordinates on Lambert projections. Data Cards (67)
18 - State Plane Coordinates—Transverse Mercator	Conversion of geographic coordinates to and from state plane coordinates on transverse Mercator projections. Data Cards (49)
19 - State Plane Coordinates—Alaska Zones 2-9	Conversion of geographic coordinates to and from state plane coordinates for Alaska zones 2-9.