Jason Merrill

@Trianglemancsd Implementation is more important than ideas.

@farrarscott Beautiful

@shapeoperator 👀

nifty stuff

@Desmos @RichardW314 The fix was to be smarter about avoiding this extra bookkeeping in cases that we can determine it won't be used.

@Desmos @RichardW314 We recently added some extra bookkeeping that's designed to make higher order derivatives faster. However, in this graph, which evaluates a first derivative at many many different points, the calculator was spending all its time on this new bookkeeping.

@Desmos I made a roller coaster graph a couple years ago. I used it for a project in my AB Calculus class. It used to run pretty slow, but it ran. I just opened it today and none of the graphs or animations load. desmos.com/calculator/hit… Did the memory tolerance for Desmos change?

@LukeSelfwalker @Desmos Good news: this should be fixed now. Thanks for reporting Luke!

I have run into a @Desmos issue when sampling from a binomial distribution. Seems like there is a limit to what the amount of trials and % success can be. The higher amount of trials, the lower the % needs to be so that the sample does not default to the number of trials.

I make some version of this in @Desmos every year and it is never fails to amaze me. There's a mathematical satisfaction in rebuilding it every time too! #math #mathchat #APCalc #calculus

@MrHonner @Desmos Makes me really happy that this doesn’t feel too onerous just do again when you want it again.

⚡2D to Simulate 3D: Made that legendary Rubik's Cube even easier to Understand ⚡ The legendary Rubik's Cube made even easier to understand

Desmos Studio is hiring! 🎉🎉🎉 We are looking for people to join us in our mission to help everyone learn math, love math, and grow with math. Learn more about our openings for a UI / Visual Designer and a Community Manager here: desmos.rippling-ats.com

@karlcow Amazing! Thank you.

We learned today that WebKit/Safari has special behavior for desmos.com hard coded in. Guess we’re in the big leagues! #L442-L443" target="_blank" rel="nofollow noopener">github.com/WebKit/WebKit/…

@dandersod Forgot about the amnesia, eh?

@shapeoperator and it looks like I've already asked and had this question answered! twitter.com/ehud/status/11… sigh.

What's that thing called where when you read a story about something you know deeply and there are all kinds of flaws, that you then now conclude that all their coverage is deeply flawed? In other news, NYT is reporting that test grades are "appalling" nytimes.com/2022/10/24/us/…

@RonAvitzur You can write this as a linear transformation of (p, 1), and then take the nth power of that matrix: wolframalpha.com/input?i=%7B%7B… I think the result is T^m(p) = exp(inm)p + (exp(in)a+b)(exp(inm)-1)/(exp(in)-1)

It doesn't need to be recursive. F is just Tⁿ, the transformation function T applied n times. GC does not (yet) support a notation for saying Tⁿ to mean applying T repeatedly. Is there a simply way to write Tⁿ explicitly given T(p)=exp(i*n)*(p+a)+b?

Today's equation brought to you by desmos.com/calculator/a3m…

@gilmoandy @stlouisfed Ouch

Child care is a significant expense for many families. A model examining costs and household incomes found that child care was least affordable in Vermont and Maine, and most affordable in Utah and Georgia in 2019 ow.ly/AOOY50L7uBV

@MrHonner My first grade teacher taught us Chisanbop, which allows counting to 9 on one hand or 99 on two hands by assigning different place values to different fingers. I still use it all the time. en.m.wikipedia.org/wiki/Chisanbop

I am a mathematician. I also routinely count on my fingers to compute Friday's date when making my calendars.

@jckarter The logarithmic spiral has a closed form arc length parameterization too. In general, I think curves with simple polar coordinate representations are good candidates for having closed form arc length parameterizations. desmos.com/calculator/1gz…

@jckarter The tractrix has a simple invertible arc length formula that could be used to parametrize it by arc length: #Properties" target="_blank" rel="nofollow noopener">en.m.wikipedia.org/wiki/Tractrix#…

@AndyDentPerth @jckarter That is a mouthful.

@shapeoperator @jckarter Loved the tractrix pole animation but Wikipedia lost me with “The trajectory determined by the middle of the back axle of a car pulled by a rope at a constant speed and with a constant direction (initially perpendicular to the vehicle).”