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fractalkitty.com
Sophia (she/her)
@fractalkitty.com
620 followers 380 following 310 posts
Math-obsessed perpetual asker of why. Random task penguin. Life thoughts are often in haiku. (She/her)
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fractalkitty.com
January 10, 2026 at 5:40 AM
fractalkitty.com
added a draft of a compass + paint toy today and played with it.

inquiries.link/tools/geomet...

#mathart #mtbos
tan and slate circle of life construction with added circles and shading so that there is a crescent moon and flower painted tan, with tan lines and slate for the rest of the drawing. tan and slate circle of life construction with added circles and shading so that there is a crescent moon and flower painted tan, with slate lines and slate for the rest of the drawing. This one there are lines though the lune. A geometric construction with a lune inside many circles and a flower at the center. the lines are tan with blue shading elsewhere a lune and a flower with some lines indicating remnants of its construction. the curve lines are blue and match the background and the lune and flower are tan.
January 5, 2026 at 4:09 AM
fractalkitty.com
postcard plotting started:
December 17, 2025 at 9:49 PM
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My friend needed a friend

#mathart
Origami fabric icosahedronand octahedron side-by side with turquoise purple and blue fabrics on a cutting mat
November 16, 2025 at 9:24 PM
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I am currently trying an Icosahedron
A partially assembled icosahedron out of batik fabrics
November 16, 2025 at 7:38 PM
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I will post on my blog soon. each square is 9.5"
Nothing is sewn; theoretically, it can come apart. I was so excited, I didn't document it well

I used an interfacing with this one (ironed on for a little stiffness). The batik will limit any fraying

I plan to do another and take better pictures
November 16, 2025 at 4:48 PM
fractalkitty.com
Batik sonobe today

#fiberart #origami #batik #mathart
Purple greens and turquoise fabrics, folded into an octahedra with rocks in the background this angle shows a non-symmetrical view. A fabric octahedron with purple, turquoise and green fabric on river rock with one of the points visible as a triangle. Purple greens and turquoise fabrics, folded into an octahedra with rocks in the background this angle shows a non-symmetrical view.
November 16, 2025 at 12:34 AM
fractalkitty.com
It's beautiful.
A person walks on an axis with a spring coming from the origin out with echos of this person on the y and z axes showing Euler's formula with real and imaginary axes labeled. The background is in space with a star at the origin.
November 11, 2025 at 3:22 AM
fractalkitty.com
Love this!

I’ve used wood and nails or cloth and embroidery with students in the past: www.fractalkitty.com/week-15-stri...

And for online learning, I made some tools:

www.fractalkitty.com/string-art-p...

Example jamboard:
November 9, 2025 at 5:16 PM
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Today's #birdOfTheDay is #Heron so I'll leave this here - Heron's formula

www.fractalkitty.com/content/imag...
A blue heron at night with the moon large and behind. The heron is facing left and not extended and only shoulder up visible. Heron's formula is in the moon with a triangle drawn with sides a,b, and c, the equation s = (a+b+c)/2, and A = sort(s(s-a)(s-b)(s-c)).
October 27, 2025 at 9:47 PM
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Coffee realized
October 26, 2025 at 9:01 PM
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My 14yr old is learning blender.

He already has a space capsule, rocket, and launch sequence. But this detail made my morning.
October 26, 2025 at 4:32 PM
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Greater Yellowlegs were talking at the end of my run tonight. #birds #oregon #greateryellowlegs
October 25, 2025 at 4:11 AM
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Contemplation
Yellow rumped warbler on a branch with head tilted to the right. Dark speckled breast with yellow pits and white chin are visible.
October 23, 2025 at 5:45 PM
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Today's #mathober is primitive.

Here is a code snippet:

codepen.io/fractalkitty...

#mathober2025 #noKings
Alt text p5.js code showing that all the global variables are variations of no kings: let noKings = 0; let nOkings = 60; let nOKINGS = [4485, 5852, 7373]; let NoKINGS = [1380, 19019, 19069]; let NOkINGS = [3059, 8580, 9109]; function setup() { nokinGs = 500; createCanvas(nokinGs, nokinGs); background(255);
October 19, 2025 at 3:01 AM
fractalkitty.com
Lol - I play a circular guitar all the time.
A yellow budge on the neck of a banjo zoomed in. A hand in a clawhammer style is on the strings
October 18, 2025 at 2:42 PM
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Here is my bird in a bush
American Redstart with beak open on a twig with green background. The whiskers around the beak point up. The bird has a grayish breast with orange/red pits and dark browns wings. There is a yellow band on the tail.
October 15, 2025 at 6:58 PM
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Made a blogpost into a zine for a vigil for a tree today.
A printout, scissors, stapler, and folded zines on a table. The zine is on a single sheet, has an image of a tree, and reads: flow into an ocean of sky October 5, 2025 I came upon one of your friends today and noticed that he was taking a moment; a moment to appreciate you, to take you in, maybe to remember you. I asked. He pointed at a sign. We talked. At first, I was angry, and then I came to an understanding, and now I am processing. We are both sad. We are all sad. You might know this already, or feel it in your being, but you have only a few days left, my friend. I pray they are the days that nurture you - be it rain, sun, the sound of crickets, the Great Horned Owls that find you in the dark, the little bushtits blowing through you like a breath. May all that love you come to visit – take you in – celebrate your being. I can tell you that I am going to miss you – your little green leaves that emerge every spring that are a call for all to blossom – your ability to blanket our paths calling us to be children of the earth and crunch in your leaves – your cradle of boughs that provide for our birds, the crows - oh the crows will miss you so. I am going to miss your branching beauty, your glorious hues, and your streams of growth that flow into an ocean of sky. Thank you for being here and gracing me with your call to ground for so many years.
October 12, 2025 at 12:07 AM
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I listen to the parents duet in January and found the nest in the spring. Please note that I have a 600 mm lens and kept my distance.
A juvenile, great horned owl sitting up in a nest with his little yellow eyes and tufted ears looking out to the distance. The wood is Cottonwood with a blurred background and vignette.
October 10, 2025 at 5:16 PM
fractalkitty.com
I made a plushie for my child. Alpaca and wool- sooooo soft.

#botw #fiberart
A brown and tan treelike crocheted creature with a leaf on the face with nose poking out and markings for eyes. The plushy is sitting in a fig tree tilted.
October 9, 2025 at 10:26 PM
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Young waxwings are everywhere. I counted over 80 in my backyard this morning. I grow things for the birds.
Young waxwing on a branch with leaves with white and tan streaked breast and mostly tan face with slight markings of the adult. The bird is facing right with grey wings and side view of the tail visible.
October 9, 2025 at 4:11 PM
fractalkitty.com
Can you find the Sigma?
#mathober #mathober2025

Today is notation.

For code - I did Q.E.D: codepen.io/fractalkitty...
A brewers blackbird with a black iridescent body and yellow eye on a twig in the water. The legs reflected make a sigma symbol. The water is blues and browns smeared color with a slightly smeared reflection.
October 8, 2025 at 4:51 AM
fractalkitty.com
Greater Yellowlegs (Tringa melanoleuca) at Ankeny Wildlife Refuge in Oregon.

I love their calls in the sloughs.

What is their collective noun?
A 5 panel collection of greater yellowlegs preening. The first image on the left is tall and long and is a close-up of the head. There are four images on the right that are stacked from top to bottom where the bird is pruning under than over than front then wing. The water is gray with random twigs and leaves showing through.
October 7, 2025 at 5:20 PM
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Today's Mathober - partial sum.

I also did a p5 sketch: codepen.io/fractalkitty...

#mathober #mathober2025 #creativeCoding #birdart #mathart #mtbos #cantor #partialsums
A pileated woodpecker sits at the base of a tree that has a cantor set excavated, where the lines for the cantor set ar vertically drawn by long excavation trenches. The bird has a bright red cap and is making eye contact with the viewer. There is partial bark at the edges of the tree and grass on the ground.
October 7, 2025 at 5:10 AM
fractalkitty.com
Today's mathober is "digraph sink"

All these paths seem to lead to a flicker.

I did a p5js sketch as well: codepen.io/fractalkitty...

#mathober #mathober2025 #birds #birdart
A flicker perches on a birch branch that splits of into the sunlight so that all branches lead to the flicker looking at the sun. There is a circular smeared sky that goes from light to darker edges.
October 6, 2025 at 5:56 AM