You can build that.Now build yours.
Same equations you type into Desmos on the SAT. 3-minute lessons. Level 1 is free.
Not Roblox. Your own city, out of the same equations you type into Desmos on the SAT. Level 1 is free.
1Try it now: make the dashed wave.
Not quite.
Clean. +15 XP
ok that was correct. annoying.
You just wrote y = sin(x) + 3. By level 6, lines like it are a game you walk through.
Keep buildingFree. No account. Your progress saves on this device.
Where this came from
400k views.
Everyone asked the same thing.
where to play?
what are the equations?
PLS LET ME SAVE THIS
Time to play Doom on my SAT
The questions under the Reel. This page is the answer.
Six levels
One city. It turns into a game.
3-minute lessons. About 3½ hours in all.
Your teacher, unfortunately
He lives in the calculator.
He has watched ten million parabolas and liked none of them. He checks every line you write and he’s rude about it. Secretly, he’s proud.
Poke him.
The short version
Twenty seconds,
then you decide.
- It speaks SAT calculator.
- The digital SAT has Desmos built in. Every line you write here, you can type there, the same way.
- Nothing to install.
- No account, no ads, no chat. It runs in the browser, school Chromebook included.
- It’s
$7.89$1.99, once. launch price - No subscription. If it isn’t for you, one email within 30 days and it’s refunded.
I’m one person. This started as a Reel of a game running inside a graphing calculator, and the comments wouldn’t stop asking how. So I built the course I wish I’d had in math class.
Pay once. Keep it.
$7.89 $1.99 once. launch price
- TodayAll six levels unlock.
- TomorrowNothing. No trial ending.
- NeverAnother charge.
- Level 1 is free, right now. No card.
- Same syntax as Desmos on the SAT.
- 30-day refund, no questions.
- Payment by Stripe. Receipt by email.
One-time payment. No auto-renewal.
or start level 1 freeQuestions
01Is this Desmos?
No. It’s our own graphing calculator, built for this course, and it speaks the same language. What you type here works in Desmos, the calculator built into the digital SAT. Ours answers in milliseconds, which is why the wave up top moves the moment you tap.
02Do I need to be good at math?
No. The first line in the course is y = 0. Everything after that is taught right when you need it, with a picture.
03Does it work on my phone?
Yes, the whole course. Level 1 is built for your thumb. Later levels feel nicer on a laptop or a Chromebook.
04How long does it take?
3-minute lessons. About 3½ hours in all.
05Is this Doom?
No. Doom was the Reel. Here you build your own game, in your own city, with your own rules.
06What if I don’t like it?
Email us within 30 days and you get the $1.99 back. No questions.
He’s asleep. Go build something before he wakes up.
Start level 1 free