Frink Sample Programs

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Below is a collection of sample Frink programs. Another good source for common tasks can be found at Rosetta Code's Frink page.

You can also download all of these sample programs in a single zipfile, FrinkSamples.zip
(zipfile was last modified AD 2020-09-18 PM 07:19:47.000 (Fri) Mountain Daylight Time)

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allFactors[text] Calculates all factors of a number (not just prime factors.)
ArbitraryPrecision[text] Calculates some functions (e.g. log and exp) to arbitrary precision.
baseball[text] Calculates trajectory of a baseball.
bert[text] Calculates the probability of two first names appearing in the same movie.
binarySearch[text] Routines for binary-searching an ordered list.
bitcoin[text] Obtain current Bitcoin exchange rates.
bitwiseXOR[text] Calculates a bitwise XOR function for arbitrarily-large numbers.
ChineseNumbers[text] Formats integers into their Chinese equivalents (formal and casual)
classtest[text] A sample of object-oriented programming; demonstrates writing and using a class specification.
closestFraction[text] Routines for finding the closest fraction to a number. Also see continuedFraction.frink .
commonTransformations[text] Demonstrates Frink's ability to perform symbolic calculations, including solving equations and taking derivatives.
compound[text] Routines for calculating masses of chemical compounds.
continuedFraction[text] Routines for generating continued fraction representations of numbers.
ConvexHull[text] Calculates (and optionally plots) the convex hull of a set of points.
CoordinateConversions[text] Converts latitude and longitude to and from UTM coordinates.
Country[text] Contains polygons for the outlines for all of the countries in the world.
Datum[text] A data structure used to represent the ellipsoidal shape of the earth, used in various navigation routines.
daylight[text] Calculates duration of daylight over the course of a year.
derivatives[text] Transformation rules for finding derivatives of expressions.
DiscreteDistribution[text] Allows you to randomly choose items based on a specified probability distribution.
e[text] Calculates the digits of e, the base of the natural logarithm, to arbitrary precision.
elements[text] A basic periodic table of the elements.
exectest[text] Demonstrates starting external processes using Frink's ability to call Java code.
Fourier[text] Routines for discrete and fast Fourier transforms (FFT) of data.
geometry[text] Functions for planar geometry.
hints[text] Provides hints and help for common errors in Frink calculations.
holeearthfullgradient[text] Calculates time to fall through a hole in the center of the earth with realistic model of densities.
holeearthgradient[text] Calculates time to fall through a hole in the center of the earth with overly-simplistic model of densities.
holeearthuniform[text] Calculates time to fall through a hole in the center of the earth with naïve uniform density model.
homonyms[text] Finds homophones of words.
HTMLUtils[text] Utilities for processing HTML.
JacobiSymbol[text] Functions for calculating the Jacobi symbol and Legendre symbol.
JVMinfo[text] Displays the properties of your Java Virtual Machine. Demonstrates use of Java Introspection.
LogIntegral[text] Calculates the logarithmic integral Li[x].
lottery[text] Routines for calculating lottery odds.
LucasLehmer[text] Implements the Lucas-Lehmer test for proving primality of Mersenne primes.
Maidenhead[text] Converts between lat/long and Maidenhead coordinates.
mandelbrot[text] Draws a Mandelbrot set in plain text.
mandelbrotGraphics[text] Draws a Mandelbrot set as graphics.
mithengecorridor[text] Data for the Infinite Corridor at MIT.
mithengemoon[text] Calculates moon alignments with MIT's Infinite Corridor.
mithengesun[text] Calculates sun alignments in MIT's Infinite Corridor.
navigation[text] A library of high-precision calculations for navigating on the earth.
note[text] Functions for converting frequencies to musical notes.
palindromicNumbers[text] Finds palindromic numbers by the "reverse and add" method.
pi2[text] Calculates π to arbitrary precision.
planets[text] A library to calculate the positions of the the planets to high accuracy using the VSOP87 theory.
pollardP-1[text] An implementation of the Pollard p-1 factoring algorithm.
Processes[text] Contains functions for launching external processes from Frink.
quine[text] A program that prints its own source.
randomDistribution[text] Randomly selects elements from a discrete set with a known distribution.
relativity[text] Functions for various relativistic equations, including black holes and relativistic rockets.
RiemannZeta[text] Calculates values of the Riemann Zeta function.
root[text] Finds roots of numbers to arbitrary precision.
siderealtime[text] Calculates Greenwich Mean Sidereal Time.
sieve[text] Sieve of Eratosthenes to find prime numbers.
simplegraph[text] An simple but interesting program that uses interval arithmetic to plot equations.
solve[text] A simple program that solves a variety of algebraic equations.
solvingTransformations[text] A library of transformation rules to solve algebraic equations.
StandardAtmosphere[text] A class which implements the U.S. Standard Atmosphere of 1976. This allows calculation of pressure, temperature, air density, speed of sound, etc. at varying altitudes.
StandardAtmosphereTest[text] Contains examples of doing standard atmosphere calculations.
statistics[text] Functions for statistics including the forward and inverse error function, the normal distribution, etc.
stellarMagnitude[text] Functions for converting between stellar magnitudes, power fluxes, and total power emitted.
stock[text] Fetches stock prices from the internet.
sun[text] A massive library of astronomical calculations to find positions of the sun, moon, and other calculations.
sunplot[text] Creates data to plot the location of the sun for an entire year.
sunrise[text] Calculates times of sunrise, sunset, and twilights.
timezonediff[text] Calculates the difference between two time zones.
trigram[text] Program to find the most frequent n-letter patterns in words.
water[text] Calculates properties of water and steam to high accuracy using the IAPWS-95 model.
waterVapor[text] Calculates the absolute and relative humidity and partial vapor pressure of water.
webspider[text] Simple program to find all of the links in an HTML page.
wheelgame3[text] Simulator to find optimum play for the big-wheel-spinnin' "Showcase Showdown" game on The Price Is Right
WilliamsPPlus1[text] Factorization using the Williams p+1 factorization method.
xmldump[text] Demonstrates dumping units in an XML format.
ziplocator[text] Locates latitude and longitude of U.S. zip codes (requires data file)

Descriptions of the following programs will be added later:

100doors 99bottles 99bottles2 9billionnames
abundantNumbers accelerationSolver AgencyInitiation allFactors2
allTransforms almostPrime Amazon amicableNumbers
anagramchallenge anagramlog anagramQuandary anamorph
animate animateJupiterMoons arbitrarySqrt ArcTest
army ArnaultTest AudioSystemTest autumnEquinoxPlot
babbage BallBearing ballgame ballistics2D
baseconv baseConversionTest baseConversionTiming baseConversionTuner
basetiming BBP Beaufort benchmark1
BenfordsLaw BernoulliNumbers biathlon bigcoord
BinarySplitting BinarySplittingFactorial BinarySplittingPi BinaryWriter
birdhouse Boggle boilingPointTest BooleanTransformations
BoulderArtsAndMaths27 boyGirlPuzzle Braille BrailleTest
breaktest Brix BullsAndCows CacheFreeGDMII
cambridgetemp cambridgetempFourier candleHolder CarTalkPuzzle
CarTalkPuzzle2 ChineseMarch circleTest circularOrbit
classRedefinitionTest ClipTest ClipTestPolygon collatorTest
collectTransformations colorboxes colorillusion colorsPuzzle
commentTest consttest convergatron convergatron2
CoriolisBall CoriolisKick CornbreadCache correlation
correlationTest countryHeatMap CrackTheCode crossstitch
cryptoAES256 cryptoCircuitPuzzle cryptoProviders cryptotest
crystalradio curvefit curveFit DeadDrop
deBruijn decheckerboard decipherbible decipherrabbit
decodeBuilt decrypt deltat Derby
derbyDraw derbytrack derbytrack2 descriptorsFogus
DivideAndConquer dollarConvert DonutCutter drawCountries
drawDymaxion drawJupiterSaturn drawMD5 drawPlanets
drawSaturn drawSolarSystem drawVenus DriveYaNuts
dumpExpression dumpUnits DuncanDecode DurinsDay
Dymaxion earthdisttest EarthTemperature eBinarySplitting
eclipse ECM EmilysFourthHour emirp
encoding encodings epochClock epochClockBinary
error exactSeasons exponentialSpiral exponentialSpiralIn
exponentialSpiralOut factor factor2 factorableWords
factorFactorial factorsOf10 fetchweather fibonacci
fibonacciSpiral fireworks flag floatingPointBase
floatTiming FloydSteinbergDither fontDetails fontList
FontWidthEstimatorBuilder forensicSeismology formatterTest formatTest
fortest fortest2 fortest3 Fourier2d
FourierImage FourierImageTest fourierTemp fouriertest
FourierUtils FresnelZonePlate frinklog fryer
FTPUpload functionUtils functionUtilsTest GaiaTest
GaiaTestColumns GaiaTestGalactic Gamma GEBCube
GEBCube2 GelfandsQuestion GeneralPathClipTest GeneralPathExample
GeneralPathExamples generalPathMatch GeneralPathTest geocaching
GeometricMedian GoogleEarth GoogleTranslate gradingProblem
graphemesTest graphicalSieve graphicsAddTest graphicsTest
graphpaper GrayCodes grayscaleBars greatCircleMap
GreatPyramid Grid guitoolstest gyrojet
harvest harvest2 hemispheres hexaflexagon
hexaflexagonImage hinttest HubbleUDF hyperoperation
iau1980 IEEE754 iftest increasingPuzzle
IndianAstronomy inputtest integrals interfacetest
IntervalIntegrate intervaltest ioioThermalTest jennyMoonVenus
jigglyNumberPuzzle jotto JoyDivision JoyDivisionAnimated
JupiterMoons JupiterSaturnConvergence KaplinskyPuzzle KaplinskyPuzzleSmall
karatsuba karatsubaTest koodipuzzle lambda
LambertW largestTweetablePrime latitudeComparison latitudeComparison2
LatLongToUTM launchdrag lefthand leftTruncatablePrimes
letterFrequency letterGraph lettergrid LiarLiarII
lineWrapper listCountries listFonts listFunctions
listUnits longestWord lowestFactor L-system
L-system-animated makeCountries manhattanhengemoon manhattanhengesun
mapDymaxion mapStates mapStatesSinusoidal mapTest
mapTimeTest mapTimezones mastermind Matrix
maximize McKellarPuzzle MD5crack meeus33a
meeus47a meeus47b MercuryTransit mersenne
mersennetest mersennetiming meteorCrater MicroRevengeCache
midisynth mithengefoner mithengeplanets mithengereverse
mithengereverse2 mithengereverse3 mithengereverse4 mithengereverse8
mithengeSirius mnemonics mnemonicsMajor modTest
modtimetest modtimetest2 MollweideProjection MomTetrahedron
MonthWithoutAFullMoon moonangle mooncomparison moonDrawingTest
moonPlanetPlot moonsize moonsizecut mooreslaw
multifortest multifortest2 multiline multinexttest
MultiplicationFrustration musicalscale namefreq NancyDrewDogsPuzzle
NewtonDivision NewtonsMethod nextLargestPrime nextPrimeTest
nonterm normalCurve normalCurve2 nozeroes
numberCheckerboard oonapuzzle optimumLaunch orbit
orbitalBurn OrderedList outputtest paniqPuzzle
parseIntTest partitions PascalsTriangle passportpic
pegGame perihelion PetersProjection pi
piChudnovsky piChudnovskyNew piPoster piRamanujan
pixelAveragingTest planarSundial planetDistance planetLocations
plotCambridgeTemp plotConvergence Pochhammer pokerhands
polygonTest ponderThis201004 ponderThis201004b powerTransformations
predictSequence previousPrimeTest PrimeAndPrejudice primebits
primechain primeCountTest primelist primeQuadruples
primeQuadruplets primesInPi primetest primetest2
primetest3 primorial printerResolutionTest printPi
proctest properDivisors pseudoprimes punctuationCipher
pushclasstest pushtest qrcode quadtree
randomprime RecursiveParseString RecursiveParseStringNative regression
RelativisticKineticEnergyTest repeatingDigits returnTest rewriteImage
Richter RiemannPrime RightStuff risesetchart
rollForIntelligence rootGUITest RosettaCodeUnimplemented rosettaify
rot13 RSA Rump safePrimes
SaturnChristmas scarfquine scarfquine1 scarfquinetest
secant showFonts shuffleTest SierpinskiCarpet
similarUnits simplegraph2 simplegraph3 simplegraph4
simplegraph5 simulatedOverload sizesort Sneaky1
Sneaky2 socatprime SolarCooker SolarCooker2
Solver SolverTest solveTest solveTest2
solveTrigonometric sorttest sousvide sousvideTy
spheresProblem spheresProblem2 spiral springEquinoxPlot
sqrtWayne squarePuzzle StarTram stirling
Stirling StirlingCoefficients stocktest strongPseudoprimeTest
strongPsuedoprimeTest Sudoku SudokuSmooth sumdigits
summerSolsticePlot sumTo100 suntest suntimetest
systemSolver systemSolver2 systemSolverDemo systemSolverTest
systemSolverTest2 T9 TAIMinusUTC TAK
TangentNumbers TaylorSeries TelescopeViewfinder temperatureFrequency
testBaseConversions textAlignTest textAlignTest2 textcenter
textcenter3 textcenterfixed thermalTest TierraEstella
timeFullMoon timefunc TLE tns
TopHat3D toStringTest TowersOfHanoi transit
transit3 TravellersDilemma trs80ify tryTest
Tupper TupperGen tvaspect TysonTweet
undocumentedFunctions Unicode unicodeGraphics unicodeGraphics2
UnitMathHelper unittable universeNote use
usehttp useparent UTMtest vaporize2
vd vectorTiming VenusApparent verifySSH
VINChecker VoxelArrayTest vsop87 Water1984
water2unicode waterold waterUnicode wheelgame
windchill WordFrequency Words wordTransform
Writer WWIICache wynnhenge wynnhengemoon
xkcd287 XtotheX XtotheXbetter YCbCr
YentzenPuzzle ZehnGray ZipFile

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