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#trigonometry
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#ThisWeeksFiddler, 20250530
This week the #puzzle is: Can You Weave the Web? #geometry #trigonometry #probability (Link at the bottom.) A spider weaves a web within a unit square (i.e., a square with side length 1) in the following haphazard manner: First, the spider picks two points at random inside the square. In particular, it picks the points […]
https://stuff.ommadawn.dk/2025/06/03/thisweeksfiddler-20250530/
Stuff from ommadawn.dk (Lise Andreasen) · #ThisWeeksFiddler, 20250530This week the #puzzle is: Can You Weave the Web? #geometry #trigonometry #probability (Link at the bottom.) A spider weaves a web within a unit square (i.e., a square with side length 1) in the fol…
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749 
Pure #CSS Möbius 6hedrons https://codepen.io/thebabydino/pen/mJojKd
The how behind I live coded it in 30 minutes https://css-tricks.com/how-i-live-coded-my-most-hearted-codepen-demo/
Could be improved with CSS variables nowadays, see https://css-tricks.com/simplifying-css-cubes-custom-properties/ as well as by using CSS trigonometric functions.
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Crochet is math. If you're having issues making flat circles, look at this.
https://m.youtube.com/watch?v=ycOV-q73qpE
(I use an alternative front end for YouTube)
#crochet #math #fiberarts #circle #geometry #trigonometry
Used the laser cutter to make a holder for my class set of spirographs — for the lessons I like to do my students need to know how many teeth the gears have. They write a program that produces the same curve using turtle. (with older students we do the trig, which I just call “magic circle functions” for the grade fives)
This will make it all go much smoother!
This is 8 sets packed into one box!
#math #mathEducation #teaching #spirograph #mathematics #k12 #hypotrochoid #trigonometry
Love Triangle: How Trigonometry Shapes the World by Matt Parker, 2024
Trigonometry is perhaps the most essential concept humans have ever devised. The simple yet versatile triangle allows us to record music, map the world, launch rockets into space, and be slightly less bad at pool. Triangles underpin our day-to-day lives and civilization as we know it.
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#tinyCSStip/ fun fact: same aspect ratio is also what we need for a regular hexagon because that can made up of only equilateral triangles!
We just need more points for the clip-path (6 for a hexagon vs. 3 for a triangle).
#CSS #cssMaths #trigonometry #maths #mathematics #frontend #code #coding
#web #dev #webDevelopment #webDev #hexagon
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#tinyCSStip Want to create a triangle with all edges equal in 4 simple #CSS declarations?
Such a triangle also has all vertex angles equal = (sum of angles in a triangle)/3 = 180°/3 = 60°
https://en.wikipedia.org/wiki/Sum_of_angles_of_a_triangle
Knowing its edge length a, its height is a·sin(60°).
Aspect ratio of the box
a/(a·sin(60°)) = 1/sin(60°)
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Two teenagers have once again proved an ancient math rule.
From Science News: “Some people have the impression that you have to be in academia for years and years before you can actually produce some new mathematics,” says mathematician Álvaro Lozano-Robledo of the University of Connecticut in Storrs.
Science News · Two teenagers have once again proved an ancient math ruleNe’Kiya Jackson and Calcea Johnson have published 10 trigonometric proofs of the Pythagorean theorem, a feat thought impossible for 2,000 years.
https://www.europesays.com/1550384/ Israel, Iran and the Middle East Proxy Wars Explained – Colonel Richard Kemp #ff #FrancisFoster #Interview #Iran #Iraq #ireland #Israel #kissin #kk #KonstantinKisin #MiddleEast #Palestine #RIchardKemp #trig #trigger #triggernometry #triggerpod #trigonometry
My blanket when I try to find the long side at 3 am.
I think this is a #Geometry #Joke but it might be #Trigonometry Joke all I know is I laughed.
Old news with a current news twist:
"Two high school students have proved the #Pythagoreantheorem in a way that one early 20th-century mathematician thought was impossible: using #trigonometry.
Calcea Johnson and Ne’Kiya Jackson, both at St. Mary’s Academy in #NewOrleans, announced their achievement last month at an American Mathematical Society meeting."
The twist:
the #basketball legend #CharlesBarkley gave their school $1M for it
NOLA.comCharles Barkley keeps $1M promise after 2 New Orleans students solve Pythagorean TheoremTwo New Orleans students solved the Pythagorean Theorem, and their achievement even caught the eye of a legendary NBA player.
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I commented in The Conversation on this research back in 2017 when it was being reported everywhere. The "more accurate" part is deeply misleading. The table is impressive but only includes a set of triangles for which the sides could be specified using base 60 fractions. It does not cover the general case. We could easily produce similarly accurate tables in base 10.
Some of my 2017 comments:
The ConversationWritten in stone: the world’s first trigonometry revealed in an ancient Babylonian tabletA 3,700-year old Babylonian clay tablet reveals an ancient method of constructing right-angled triangles that makes it the world’s oldest and most accurate trigonometric table.
Happy Tau (τ) Day to all of you who believe π is "wrong"!
Unlike π day, where you are limited to eating pie, τ day may be celebrated by eating all the round foods.
Here's some generative art involving τ - both with the main circle and the sin/cos functions used in the pattern.
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@generiyaki @knodel Remarkably, these piecies of #ArtCode always remind me of #Spirograph drawings I did as a kid. But they are missing the elements of #HarmonicMotion and #CircularMotion one learns from using the kids toy. Which I later applied to #Algebra #Geometry #Trigonometry Calculus and #Topology #ArtAndMusicGiveMeHope
#Runestones, #trigonometry, and the #GreatAwk. Ole Worm (Olaus Wormius to his Latin-speaking friends) was a remarkable guy.
en.wikipedia.orgOle Worm - Wikipedia
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That is awful.
I got into legal trouble the last month of high school and happened to also be failing #trigonometry.
I found out the teacher was talking shit about me to other classes.
I confronted her about it.
She said I needed to focus on trig.
I said I didn’t need it to graduate.
I later passed trig in college and also earned a degree in #engineering.
Fuck gossipy, doubting teachers!
I’ve been working with the LEEDS 2023 Year of Culture on telling their story with data. You can look at the data microsite that I built along with the team at Open Innovations here -> https://data.leeds2023.co.uk.
I’ve had fun on the last proper day before Christmas making a page which lays out the striking ward motifs created during The Gift project in the same layout as our hex maps. I think it looks lovely!
Take a look online at https://data.leeds2023.co.uk/the-gift/
3,700-year-old Babylonian stone tablet gets translated, changes history
They were doing trigonometry 1500 years before the Greeks.
Most historians have credited the Greeks with creating the study of triangles' sides and angles, but this tablet presents indisputable evidence that the Babylonians were using the technique 1,500 years before the Greeks ever were.
Mansfield and his team are, understandably, incredibly proud. What they discovered is that the tablet is actually an ancient trigonometry table.
#History #Mathematics #Babylon #Trigonometry #Archeology #Amazing
www.upworthy.com/3700-year-old…
Join @ishotjr, @joegrand, and a panel of special guests as we explore #PhotonicExfiltration, #tessellation and #trigonometry, #drone jamming, and more, as well as the latest #SingleBoardComputers and #microcontrollers from @Raspberry_Pi, @arduino, @adafruit, @seeedstudio, and others 
TONIGHT at our V87 #LaunchParty! 
