Jason Merrill

Principal engineer at geometry enthusiast, and hobbyist powerlifter.

[Jason Merrill @shapeoperator]

@Trianglemancsd Implementation is more important than ideas.

[Jason Merrill @shapeoperator]

@farrarscott Beautiful

[Jason Merrill @shapeoperator]

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

[Jason Merrill @shapeoperator]

@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.

[Jason Merrill @shapeoperator]

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

[Patrick Honner @MrHonner]

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

[Jason Merrill @shapeoperator]

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

[Jousef Murad @Jousefm2]

⚡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 @Desmos]

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: https://t.co/ewLgX6eCrQ

[Jason Merrill @shapeoperator]

@karlcow Amazing! Thank you.

[Jason Merrill @shapeoperator]

We learned today that WebKit/Safari has special behavior for https://t.co/eOGVcjCgsB hard coded in. Guess we’re in the big leagues!

https://t.co/9par6K9z45

[Jason Merrill @shapeoperator]

@dandersod Forgot about the amnesia, eh?

[Jason Merrill @shapeoperator]

@RonAvitzur You can write this as a linear transformation of (p, 1), and then take the nth power of that matrix: https://t.co/ZvsAyFKQTv

I think the result is T^m(p) = exp(inm)p + (exp(in)a+b)(exp(inm)-1)/(exp(in)-1)

[Jason Merrill @shapeoperator]

@gilmoandy @stlouisfed Ouch

[Jason Merrill @shapeoperator]

@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.

https://t.co/ErVDmOAYHP

[Jason Merrill @shapeoperator]

@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.

https://t.co/08XuBX1CUh

[Jason Merrill @shapeoperator]

@jckarter The tractrix has a simple invertible arc length formula that could be used to parametrize it by arc length: https://t.co/mPmYzridP3

[Jason Merrill @shapeoperator]

@AndyDentPerth @jckarter That is a mouthful.