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 2020-06-26 AM 12:00:24.000 (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
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 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
drawCountries drawDymaxion drawMD5 drawSolarSystem
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
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
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 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 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 temperatureFrequency testBaseConversions textAlignTest
textAlignTest2 textcenter textcenter3 textcenterfixed
thermalTest TierraEstella timeFullMoon timefunc
TLE tns 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 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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