[259]

Nine marching rectangles march along a contour.

[258]

Brutally approaching blocky arrangements; PUZ/ZLE IS SOL/VED

[257]

Seven years, episodically cast in bits.

[256]

Tchoukaillon hooks; lazily evaluated.

[254]

Vanishing members: only instantiation reveals their whereabouts.

[253]

Winter MMXXI: a calculating tree.

[252]

Finite Life’s long trajectories: playing a finite version of Conway’s Game of Life for a long time.

[251]

Halloween MMXXI: Uncanny Woods — or possibly “un-can-y woulds”?

[250]

[249]

Hoisting HTTP headers home shines a light onto commonly sent initial HTTP lines.

[248]

Compiling to native brainfuck; a project three years in the making.

[247]

Plant fibre puppet: for persons feeling perilous.

[246]

Factoids #3; topological findings.

[244]

Wholly brainfuck, at least a part of it.

[241]

Intriguingly Matured Graphics generated by less well aged scripts.

[240]

Cellular circuit simulation: a grid world of binary states and gates.

[238]

Factoids #2; an assortment of bijective maps.

[237]

A Month of Pining; one of hopefully copious more to come.

[236]

Halloween MMXX: a colorful poem illustration.

[235]

Crashing GCC with 63 Bytes, not counting a potential trailing

`0x0a`

.[234]

Book review: *A Tour of C++*: Stroustrup’s 240 page C++ adaptor for those already familiar with the fundamentals of imperative programming.

[233]

jblog has moved. To a fruitful next five and a half years.

[231]

Moth; an ASCII-illustrated haiku.

[230]

Measly Mazes: meander machine-made masonry.

[229]

Lichen, Extraterrestrials, Diodes #2. The bulb’s not lit, as sadness hit.

[228]

Java’s Terseness — an oxymoron.

[227]

Colorful Time Prompt in zsh adds some temporal bling to a zsh command prompt.

[226]

Zpr’(h: a symbolic, directionally super-lazy esoteric programming language.

[225]

Complete Contact Configurations computes correctly crafted cities.

[224]

Non-Uniform Shuffling explores a subtly incorrect shuffling implementation.

[222]

Factoids #1 shows off three more factoids I discovered.

[221]

Extending A056154 is about my discovery of A𝟢𝟧𝟨𝟣𝟧𝟦(𝟣𝟥) = 𝟦𝟫 𝟢𝟫𝟦 𝟣𝟩𝟦.

[220]

A325902 presents an OEIS sequence of mine.

[219]

Digit Sums proves one of Jack Reacher’s statements.

[218]

Short brainfuck Primes computes all primes representable as a

`short`

in brainfuck.[217]

Mandelbrot set sketch in Scratch sketches the Mandelbrot set in Scratch.

[216]

Factoids #0 shows off three mathematical factoids, two rigorously proved.

[215]

Mostly Misaligned Mirrors attempts to visualize and simulate a stochastic problem.

[214]

krrp. My first ever language.

[213]

Sudoku Generation uses lazy evaluation to generate sudoku puzzles of varying sizes.

[212]

Pi Day MMXIX, a π-inspired iteration quine.

[211]

Lichen, Extraterrestrials, Diodes #1: an amber light-emitting diode gazing at the moss.

[210]

Kickboy #0. Kicking the ball.

[209]

Foam Cube Puzzle, solved using brute-force.

[208]

Winter MMXVIII — a tree-shaped quine.

[207]

Symbolic Closed-Form Fibonacci: calculating a well-known sequence in an inefficient manner.

[206]

Prime Intirety — all of them!

[205]

Halloween MMXVIII: spookily celebrating with a haiku.

[204]

Conky Clock implements an ASCII-art clock.

[203]

Snippet #2; low memory usage, low usability.

[202]

Interpreting brainfuck in C — an interpretation in C.

[201]

Heapsort — an implementation in C.

[200]

Snippet #1 extends classical mutlidimensional calculus notation.

[199]

Tau Day MMXVIII celebrates the truly superior constant.

[198]

Truth is a command-line truth table creator.

[197]

Worldwide Pinhole Day MMXVIII; showing this year’s pinhole photographs.

[196]

Snippet #0 — a syntactically fascinating JavaScript snippet.

[195]

Lichen, Extraterrestrials, Diodes #0, the zeroth entry in my image series LED.

[194]

Third Anniversary celebrates this blog’s third year in existence.

[193]

BMP Implementation in C — Graphic Primitives; extending my C bmp library.

[192]

Pi Day MMXVII, calculating pi using an improper integral.

[191]

Haiku — Water Droplet. Fluid poetry.

[190]

Sorting in C, five sorting algorithms implemented in the C language.

[189]

Lyapunov Fractal — visualizing population growth leads to fractal images.

[188]

Christmas MMXVII, a fractal-haiku combination celebrating Christmas.

[187]

Python Matrix Module; matrix arithmetic and Gaussian elimination in Python 2.

[186]

Animating the Quantum Drunkard’s Walk, a cellular automaton linked to random walks.

[185]

Fire Photographies— crumbled paper at night.

[184]

Generic C / Python Polyglot showcases a polyglot template for said languages.

[183]

Halloween MMXVII, a spooky sonnet.

[182]

BMP Implementation in C defines functions for image and

`.bmp`

file manipulation.[181]

TImg lets you view your images on your graphing calculator.

[180]

Rainbowify; a colorful image filter.

[179]

Arithmetic Golfing showcases the journey to small formulas (counted in bytes).

[178]

brainfuck X, a brainfuck dialect capable of drawing color images.

[177]

Cyclic Quine ↦ Qyclic Cuine.

[176]

Mandelbrot Set III showcases a Java application enabling the user to explore the fractal.

[175]

Asciify turns ordinary pixel images into ASCII text.

[174]

Seventeen; 17.

[173]

Tau Day MMXVII celebrates this year’s tau day.

[172]

Mandelbrot Set ASCII Viewer uses vanilla Python 2.7 to display this marvelous fractal.

[171]

A285494 talks about a series I contributed to the OEIS.

[170]

JSweeper clones the world-famous game of Minesweeper.

[169]

Pinhole Photographs MMXVII, my pinhole depiction of nature.

[168]

Multibrot Set generates fractal animations in Java.

[167]

Easter MMXVII celebrates easter with an asciified egg and a haiku.

[166]

T-3PO — Tic-Tac-Toe Played Optimally tries to take over the world by solving noughts and crosses.

[165]

Second Anniversary casts a retrospective glance at two years of J-Blog.

[164]

Bifurcation Diagram illustrates a simple function which evolves into a chaotic fractal.

[163]

Pi Day MMXVII celebrates this year’s Pi Day!

[162]

A278328 showcases my first contribution to OEIS, palindromic differential squares.

[161]

Maze Solving solves — amazingly — amazing mazes.

[160]

4096 clones the world-famous game “2048”.

[159]

Slitherlink Solver is a program which solves a given Slitherlink puzzle.

[158]

Double-Slit Experiment presents an animation on this famous physics experiment.

[157]

Mandelbrot Set II shows off my newest Mandelbrot set viewer, written in Java.

[156]

New Year celebrates the start of 2017 with a haiku.

[155]

Christmas celebrates Jesus’ birthday in a haiku-Python way.

[154]

Advent IV, the fourth Advent haiku.

[153]

Orange tells the tale of the orange that tumbled to the ’ove.

[152]

Advent III, the third Advent haiku.

[151]

Advent II, the second Advent haiku.

[150]

Mandelbrot set miscalculations shows what the position of two lines can do.

[149]

MMXVI showcases the calculation for each day in December from the year’s digits.

[148]

Advent I, the first Advent haiku.

[147]

Praiku calculates primes the haiku way.

[146]

brainfuck showcases this beautiful language and a Python interpreter I made.

[145]

Halloween MMXVI tells the story of one person’s tragic end.

[144]

99 Bottles of Beer prints lyrics codegolf style.

[143]

Menger Sponge II renders the fractal in its full three-dimensional glory.

[142]

Microcounter is my “Hello World” in micro computing.

[141]

J-Trix imitates the famous Matrix hacker animation.

[140]

Collatz Conjecture visualizes the 𝟥𝑛 + 𝟣 problem.

[139]

Curses Cam combines Pygame’s camera support with curses to create shell images.

[138]

Jetris CE is my second, shell-based Tetris clone.

[137]

Web Sudoku Solver solves a given Web Sudoku!

[136]

Sudoku Solver solves a given Sudoku!

[135]

JClock VIII uses complex numbers to display time.

[134]

Weekday determines a given date’s weekday.

[133]

Triangular Squares generates triangle numbers whose square root is an integer.

[132]

RGB Jallenge challenges your rgb knowledge.

[131]

Palindrome Function calculates a number’s palindrome in a convoluted way.

[130]

Jimon recreates the famous memory game.

[129]

Numerals converts numbers into their word form.

[128]

Leaf is a haiku-gif combination about a leaf.

[127]

Cycloids shows off these beautiful mathematical curves.

[126]

Sierpiński TIrangle brings this famous triangle to the TI graphing calculator.

[125]

TI-99/4A Primes teaches an old computer to calculate primes.

[124]

Pentecost II is my gif regarding Pentecost 2016.

[123]

Connect Four shows off my first published TI-84 Plus BASIC program.

[122]

Colors is a gif about color.

[121]

Koch Snowflake generates the famous infinite fractal.

[120]

Pinhole Photograph shows off a photograph I took on this year’s Pinhole Day.

[119]

Worldwide Pinhole Day II celebrates this year’s Pinhole Day!

[118]

Jhat lets you chat on a LAN connection.

[117]

Sliding Puzzle ports the board game to pygame.

[116]

Factorization shows off a simple factorization code I wrote.

[115]

Jappy Jird clones the well-known mobile game Flappy Bird.

[114]

Prime-Generating Formula shows a neat formula I came up with.

[113]

First Anniversary, J-Blog is 1 year old… Can you believe it?

[112]

Happy Easter II wishes you a happy easter in 2016.

[111]

Pascal’s Triangle is my approach at visualizing his triangle.

[110]

Palindromic Primes generates prime numbers which are palindromes.

[109]

RGB Color Cube simulates a journey through a cube filled with color.

[108]

Surfing shows the little pixel guy hitting the waves.

[107]

Look-and-Say Sequence generates Conway’s fascinating sequence.

[106]

Haferman Carpet shows off an interesting mathematical fractal.

[105]

J-Filters VI spirals a digital image into the center, distorting it.

[104]

Conway’s Game of Life simulates a well-known cellular automaton.

[103]

J-Filters V tries to find edges in digital images.

[102]

Colored Rectangles draws colored rectangles onto the screen.

[101]

Moving Fonts uses pygame’s font module to display various fonts.

[100]

The Hundredth Post is my 100th post!

[99]

J-Filters IV manipulates a digital image with a spin.

[98]

Rotating Squares colors in some squares and spins them around.

[97]

White Fireworks — again — wishes you a wonderful 2016.

[96]

Happy New Year wishes you a wonderful 2016.

[95]

Prime Circle visualizes primes using circles.

[94]

Spinning Shapes uses lines to draw intricate shapes.

[93]

Merry Christmas is my animated gif regarding Christmas.

[92]

Fourth Sunday in Advent illustrates the fourth candle’s lighting.

[91]

𝜋 Approximation uses an equation from Euler to approximate 𝜋.

[90]

Third Sunday in Advent illustrates the third candle’s lighting.

[89]

Mandelbrot Set zooms deeply into this beautiful fractal.

[88]

Second Sunday in Advent illustrates the second candle’s lighting.

[87]

c’t Racetrack II is my second attempt at solving the racing problem.

[86]

First Sunday in Advent illustrates the first candle’s lighting.

[85]

Sleeper is not the most active program I have ever written.

[84]

Bubbles shows colorful bubbles.

[83]

Text Spinner takes your text input and spins it.

[82]

Sailing shows our little pixel hero travelling across the sea.

[81]

JClock VII uses primes and prime factorization to display time.

[80]

JClock VI simulates the basic clock face.

[79]

Prime Remainders visualizes the remainders of primes.

[78]

Langton’s Ant simulates said ant.

[77]

Halloween is my gif regarding this specially spooky date.

[76]

Spiral simulates a spinning disk emitting particles.

[75]

𝑒 Generator approximates Euler’s constant.

[74]

c’t-Racetrack is my attempt at a problem proposed by c’t.

[73]

Flare calculates with vectors to create glowing effects.

[72]

Gradient Triangles draws triangular gradients using vectors.

[71]

JDrawer is alternative drawing tool.

[70]

Sand lets you throw sand around your screen.

[69]

J-Filters III is another filter for digital images.

[68]

Pygame Bug demonstrates a bug in a Pygame function I found.

[67]

Pastel uses random numbers to create beauty.

[66]

JClock V lets time pass by in yet another way.

[65]

Text Scrambler shows an interesting behavior of our brain regarding reading.

[64]

J-Filters II uses software to enhance digital images.

[63]

Primes II combines primes with 𝜋.

[62]

Space Adventures illustrates the beauty of pixel-space.

[61]

J-Filters shows three digital image filters I made.

[60]

R-Lines may be the most inefficient way to fill the screen with pure white.

[59]

Trippy draws flashy colored circles on a black background.

[58]

Stacking Stones is a collection of a few stone stacks I made.

[57]

Random Resource Locator searches the web for random resources.

[56]

Jasteroids is my attempt at recreating Asteroids in Python.

[55]

Jonnect Jour brings the famous board game Connect Four to Python.

[54]

Caesar Cipher encrypts your secret messages in the roman way.

[53]

JClock IV uses pygame’s arc function to display time in a different way.

[52]

Pattern creates interesting patterns using colorful entities.

[51]

Jeakout is a simple Breakout clone I made.

[50]

Bobble Throw lets you throw little, light-blue bobbles around the screen.

[49]

Menger Sponge creates said sponge.

[48]

Prime Spiral II shows the prime spiral in a rounder version.

[47]

Sierpiński triangle creates said triangle using randomness.

[46]

Jic-Jac-Joe lets you play Tic-tac-toe on your computer. Dumb computer included.

[45]

JClock III takes the 7-segment clock and gives it a different spin.

[44]

Gradient Drawer combines arithmetic with mouse movement to create fancy pictures.

[43]

Circle Mover contains entities which randomly move across the screen while drawing a line behind them.

[42]

Primes shows the prime numbers in yet another way.

[41]

Bubbletree renders differently sized, gray circles going across the screen.

[40]

FS Letters II shows the filesystem in a different way (improved code).

[39]

Jake is a Snake clone.

[38]

Dig is a gif about a little pixel guy trying to reach earth’s core.

[37]

Jong is a Pong clone. Computer play included.

[36]

Jetris is a Tetris clone I basically made in 24 hours.

[35]

Grow is a gif showing a plant’s life.

[34]

Boxes neatly creates colored rectangles.

[33]

Prime Spiral writes out prime numbers in a spiral.

[32]

Pentecost is a gif regarding Pentecost.

[31]

JClock II tries a new approach at our normal clock.

[30]

Colors VI is the next version of Colors. It also creates gradients.

[29]

Graph sim is a random graphing program. Also includes useless calculations.

[28]

Shadow simulates the shadow one light source makes when illuminating polygons.

[27]

Shaper has a number of points which randomly move and uses them to create shapes.

[26]

The Firefox Unicorn shows an easter egg I found in Firefox.

[25]

Circle splatter uses — once again — vector mathematic to allow for an interesting interaction with a circle.

[24]

Rain simulates a rainy day.

[23]

Star draws moving stars.

[22]

Worldwide Pinhole Day is a gif regarding said event.

[21]

Bouncing simulates a ball falling to the ground, recoiling in the air and falling again.

[20]

Circle crawler uses vector mathematic to create interesting shapes.

[19]

Plant mimic tries to mimic the behavior of a growing root.

[18]

FS letters shows the filesystem in a new way.

[17]

Rand pix has a queue of pixels moving across the screen, changing color.

[16]

Hangman lets you play a round of Hangman.

[15]

𝜑 generator generates the golden ratio.

[14]

Bobbles uses a function seen in Colors, but illustrates it using round entities.

[13]

Colors V — reupload is just a reupload of my previous pictures regarding Colors.

[12]

Colors V — other results II shows a picture containing pure randomness.

[11]

Happy easter is a little gif I made to celebrate easter.

[10]

Colors V — other results shows different functions with different results.

[9]

Colors V draws mathematically constructed gradients.

[8]

Circle walk II has little circles going around the center.

[7]

Clean up your mac is a small command you should never (!) execute.

[6]

Polygons draws shapes from the triangle up to the 255-gon.

[5]

Moving has light-blue rectangles, which bounce off each other.

[4]

Circle Walk simulates different circles going around the center and influencing each other.

[3]

Rectangles draws colored rectangles coming from one of the four corners of the screen.

[2]

𝜋 Generator generates the well-known mathematical constant 𝜋.

[1]

Hello World was my first post. A good way to start.

Jonathan Frech's blog; built 2022/05/14 19:35:56 CEST