#hypotrochoid — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #hypotrochoid, aggregated by home.social.
-
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 -
Op Amp Contest: Generate Spirograph Shapes Using Only Op Amps and Math - If you’re a child of the ’80s or ’90s, chances are you’ve spent hours tracing out ... - https://hackaday.com/2023/06/05/op-amp-contest-generate-spirograph-shapes-using-only-op-amps-and-math/ #hypotrochoid #epitrochoid #spirograph #toyhacks #mcp6004 #opamps #art
-
The Hoot-Nanny (later called "Magic Designer") was a children's drawing toy that drew six-lobed patterns like the one shown below.
I've uploaded a simple CC-BY-SA simulation in Python here:
https://gist.github.com/scruss/529a8ad86ea4906cd7db999b285574d0It generates HP-GL and is hard-coded (currently) to one pattern. It doesn't model any of the fixed circle-drawing points present in the real thing.
Have fun!