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fractalkitty.com
Sophia (she/her)
@fractalkitty.com
590 followers 350 following 280 posts
Math-obsessed perpetual asker of why. Random task penguin. Life thoughts are often in haiku. (She/her)
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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
fractalkitty.com
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
fractalkitty.com
Greater Yellowlegs were talking at the end of my run tonight. #birds #oregon #greateryellowlegs
October 25, 2025 at 4:11 AM
fractalkitty.com
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
fractalkitty.com
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
fractalkitty.com
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
fractalkitty.com
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
fractalkitty.com
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
fractalkitty.com
Meet Wilbur.
A Cooper’s hawk walking on a fence facing left with one leg up, looking down with very big eyes. The wings are partially up and a very tense and serious walk. There is greenery in the background, a heavy, even yet and some desaturation in the photo.
October 5, 2025 at 4:02 PM
fractalkitty.com
#mathober today is Strongly

I went with a strongly regular graph after going back and forth on what to do.

#mathober2025 #birdart #mathart #mtbos #math #birds #pnw

I am hoping to do birds I've seen in my yard for the month - hoping that will work.
A pentagon made of a continuous bent twig lined with lichen. There is rotational symmetry and about halfway along each segment of the pentagon side, there is gathered bunch of lichen and moss with a bush tit on each one. The background goes from a pale yellow to a muted slate blue with a feeling of smeared clouds int he texture. The bushtits have silver lining.
October 5, 2025 at 4:03 AM
fractalkitty.com
Polyhedron - #mathober day 3

#polyhedron #mathober2025 #mtbos #mathart #pnw #birds #birdart
A digital sketch. A black-capped chickadee pecks at something in a crack on a boulder ther shap of a dodecahedron in a boulderfield. the boulder has some moss, ferns, and fungus on it, but the rest in the field do not. Only the boulder that the chickadee is on is in focus.
October 4, 2025 at 6:02 AM
fractalkitty.com
I have to add this picture for #mathober today from a few years ago.

Rhombic tricontahedron and dodecahedron
A blue and white tricontahedron made of a plus shaped toy placed together linked to link held by a person with a green shirt with a house in the background. The sheep has blues with a white inside and lots of holes within the toy. A dodecahedron made from a plus shaped toy linked together with orange, then red and the pentagon’s are open showing and inner core with more black, white and orange
October 4, 2025 at 3:17 AM
fractalkitty.com
Mathober Day 2 - Deviation

I went with a geodesic deviation.

#birds #mathober #mathober2025 #mathart #birdart #pnw
A redbreasted nuthatch stands on an acorn with a bead of water on its beak watching two other drops of water run down the acorn in longitutinal paths - deviating from each other on the surface. a blured forest background is in the backdrop.
October 3, 2025 at 3:54 AM
fractalkitty.com
The first day of the 6th year of Mathober!

Today's prompt is Link.

I will post on blue-skee and this blog post as the month goes on:

www.fractalkitty.com/mathober-202...

I might code something later, but not sure yet.

#mathober #mathober2025 #mathart #mtbos
Six rings held togher by a single ring going over and under, where each ring is a circular tree branch with lichen, moss, ferns, and mushrooms growing off. Everything is radially symmetrical so that the six rings have repeated growths and lighting. On each ring there is a brown creeper facing clockwise with a dark speckled top and white brest with a curved beak. it faces a tiny mushroom. the background goes from a light yellow to dark slate blue from the off-center center of the radial sketch with a smeared cloudy feel to it. in the lower corner is a signature S with a period.
October 1, 2025 at 10:24 PM
fractalkitty.com
Is everyone ready for #mathober? #mathober2025
I am looking forward to everyones takes, art, musing, jokes, etc.

Mathober has no rules - do 1 day or 35-or just follow along.

Blog: www.fractalkitty.com/mathober-2025/

Just the prompts: mathober.com

#indieweb

www.fractalkitty.com/content/imag...
Day 1: Link Day 2: Deviation Day 3: Polyhedron Day 4: Strongly Day 5: Digraph Sink Day 6: Partial Sum Day 7: Notation Day 8: Octagonal Heptagonal Day 9: Chi Day 10: Stellations Day 11: Orthogonal Polynomial Day 12: Monotonic Day 13: Sporadic Group Day 14: Augmented Matrix Day 15: Chord Day 16: Faithful Day 17: Wheel Day 18: Primitive Day 19: Domain Day 20: Reye Configuration Day 21: Sawtooth Day 22: Odious Day 23: Jacobian Day 24: Number Field Day 25: Wedge Day 26: Amalgamation Day 27: Bidiminished Day 28: Recursion Day 29: Hexyl Day 30: Minor Day 31: Central
October 1, 2025 at 12:33 AM