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 2018-05-08 AM 02:20:38.869 (Tue) Mountain Daylight Time)

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.
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.
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.
pi[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.
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.
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
accelerationSolver AgencyInitiation allFactors2 almostPrime
Amazon anagramchallenge anagramlog anagramQuandary
anamorph animate ArcTest ArnaultTest
BallBearing ballgame ballistics2D baseconv
baseConversionTest baseConversionTiming baseConversionTuner basetiming
BBP benchmark1 BenfordsLaw BernoulliNumbers
biathlon bigcoord BinarySplittingFactorial BinaryWriter
birdhouse Boggle BooleanTransformations BoulderArtsAndMaths27
boyGirlPuzzle Braille BrailleTest breaktest
Brix CacheFreeGDMII cambridgetemp cambridgetempFourier
CarTalkPuzzle CarTalkPuzzle2 ChineseMarch circleTest
circularOrbit classRedefinitionTest ClipTest ClipTestPolygon
collatorTest colorboxes colorillusion commentTest
consttest convergatron convergatron2 CoriolisBall
CoriolisKick CornbreadCache correlation correlationTest
Country crossstitch cryptoAES256 cryptoProviders
cryptotest crystalradio DeadDrop decheckerboard
decipherbible decipherrabbit decodeBuilt decrypt
deltat Derby derbyDraw derbytrack
derbytrack2 DivideAndConquer dollarConvert drawCountries
drawDymaxion drawMD5 drawSolarSystem DriveYaNuts
DuncanDecode DurinsDay Dymaxion earthdisttest
EarthTemperature eBinarySplitting eclipse ECM
EmilysFourthHour encoding encodings epochClock
epochClockBinary error exactSeasons exponentialSpiral
exponentialSpiralIn exponentialSpiralOut factor factor2
factorsOf10 fetchweather fibonacci fibonacciSpiral
fireworks flag floatingPointBase floatTiming
FloydSteinbergDither fontDetails fontList FontWidthEstimatorBuilder
forensicSeismology formatterTest formatTest fortest
fortest2 fortest3 Fourier2d fourierTemp
fouriertest FresnelZonePlate frinklog fryer
FTPUpload functionUtils functionUtilsTest GaiaTest
Gamma GelfandsQuestion GeneralPathClipTest GeneralPathExample
GeneralPathExamples generalPathMatch GeneralPathTest geocaching
GoogleEarth GoogleTranslate gradingProblem graphemesTest
graphicalSieve graphicsAddTest graphicsTest graphpaper
grayscaleBars greatCircleMap GreatPyramid guitoolstest
gyrojet harvest harvest2 hemispheres
hexaflexagon hexaflexagonImage hinttest iau1980
IEEE754 iftest increasingPuzzle IndianAstronomy
inputtest integrals interfacetest IntervalIntegrate
intervaltest ioioThermalTest jennyMoonVenus jigglyNumberPuzzle
JoyDivision JoyDivisionAnimated karatsuba karatsubaTest
koodipuzzle lambda LambertW largestTweetablePrime
latitudeComparison LatLongToUTM launchdrag lefthand
letterFrequency letterGraph lettergrid LiarLiarII
listFonts longestWord lowestFactor L-system-animated
makeCountries manhattanhengemoon manhattanhengesun mapDymaxion
mapTimeTest mapTimezones mastermind Matrix
maximize MD5crack meeus33a meeus47a
meeus47b MercuryTransit mersenne mersennetest
mersennetiming meteorCrater MicroRevengeCache midisynth
mithengefoner mithengeplanets mithengereverse mithengereverse2
mithengereverse3 mithengereverse4 mithengeSirius mnemonics
mnemonicsMajor modTest modtimetest modtimetest2
MomTetrahedron MonthWithoutAFullMoon moonangle mooncomparison
moonDrawingTest moonPlanetPlot moonsize moonsizecut
mooreslaw multifortest multifortest2 multiline
multinexttest MultiplicationFrustration musicalscale namefreq
NancyDrewDogsPuzzle NewtonDivision nextLargestPrime nextPrimeTest
nonterm normalCurve normalCurve2 nozeroes
numberCheckerboard optimumLaunch orbit orbitalBurn
OrderedList outputtest parseIntTest partitions
passportpic pegGame perihelion PetersProjection
piChudnovsky piChudnovskyNew piPoster piRamanujan
pixelAveragingTest planarSundial planetDistance planetLocations
plotCambridgeTemp pokerhands polygonTest ponderThis201004
ponderThis201004b powerTransformations previousPrimeTest primebits
primechain primelist primeQuadruples primeQuadruplets
primesInPi primetest primetest2 primetest3
printerResolutionTest printPi proctest punctuationCipher
pushclasstest pushtest qrcode quadtree
randomprime RecursiveParseString RecursiveParseStringNative regression
repeatingDigits returnTest rewriteImage Richter
RightStuff risesetchart rollForIntelligence rootGUITest
rot13 RSA Rump scarfquine
scarfquine1 scarfquinetest secant showFonts
shuffleTest SierpinskiCarpet similarUnits simplegraph2
simplegraph3 simplegraph4 simulatedOverload sizesort
Sneaky1 Sneaky2 socatprime SolarCooker
SolarCooker2 Solver SolverTest solveTest
solveTest2 sorttest sousvide sousvideTy
spheresProblem spheresProblem2 spiral sqrtWayne
squarePuzzle StarTram stocktest Sudoku
SudokuSmooth sumdigits suntest suntimetest
systemSolver systemSolver2 systemSolverDemo systemSolverTest
systemSolverTest2 T9 TAIMinusUTC TAK
TangentNumbers temperatureFrequency testBaseConversions textAlignTest
textAlignTest2 textcenter textcenter3 textcenterfixed
thermalTest TierraEstella timefunc timezonegraph
TLE tns toStringTest transit
transit3 TravellersDilemma trs80ify tryTest
Tupper TupperGen tvaspect TysonTweet
Unicode unicodeGraphics unicodeGraphics2 UnitMathHelper
unittable universeNote use usehttp
useparent UTMtest vaporize2 vd
vectorTiming VenusApparent verifySSH VINChecker
vsop87 wheelgame windchill wordTransform
Writer WWIICache wynnhenge wynnhengemoon
xkcd287 XtotheX XtotheXbetter YCbCr
YentzenPuzzle ZehnGray ZipFile

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