PracticeCalculus, learn calculus by solving problems
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Quiet launch
Beat 36% of Show HN launches that day
#26 of 47 on Nov 13
#2 of 2 Education & Learning launches on Show HN on Nov 13. 5.9% of Education & Learning launches (1 of 17) reached 10+ points in the last 7 days. See Education & Learning →
points · since listing → Nov 13, 10:27 UTC
Still tracked: re-read by each daily run while under ~168h old (window closes ~Nov 20, 06:19 UTC).
comments · buzz 0 in latest interval
listed Nov 13, 06:19 UTC
Traction (points) over time
Key statistics
- Traction
- 2points
- Comments
- 0
- Rank in EDUC this week
- #7of 22 HN
- Rank overall this week
- #339of 1,038 HN
- Sector hit rate
- 5.9%1/17 · 7D
- Traction line
- Below10+ points
- First reading
- 2Nov 13, 10:27 UTC
- Last reading
- 2Nov 13, 10:27 UTC
- Readings
- 1over 4h
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1 of 17 Education & Learning launches on Show HN reached 10+ points over the last 7 days. The weekly brief shows what they did differently, so you can compare PracticeCalculus, learn calculus by solving problems.
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Top on Nov 13 · 47 Show HN launches that day, by points
- #1I built a Rick and Morty explainer video generator11 points
- #2PharmA2A, an open protocol for pharmacy-to-supplier orders on A2A8 points
- #3KittyBrowser, I built a web browser in your terminal5 points
- #4UmsfuseFUSE driver and tools for UMSDOS4 points
- #5As IrfanView isn't on Linux, I've vibe-coded my own image viewer4 points
More in Education & Learning · top Show HN launches, last 7 days
- I recreated Papers Please but you're deciding which YC startups to fund239 points▲ +15
- KapsoIterative learning from enterprise data45 points▲ +45
- BackwordsLet AI teach you how to speak in reverse13 points0
- Inp-analyser skillanalysis and fix your Interaction to Next Paint4 points0
- Kiosk, a first-class AI assistants' intefrace to online services3 points0
Grades · each graded against other Education & Learning launches from the same source
Momentum
——
Traction gained in the latest daily interval
Listed in the latest interval; no earlier reading to compare
Velocity
——
Votes per hour since listing (age capped at 48h)
Listed under 6h ago; too early to measure
Engagement
——
Comments per 10 points
Needs 10+ points; below that the ratio is mostly noise
Staying Power
——
Votes at last reading ÷ votes at first reading
Still being tracked; graded once settled (48h)
Launch-day race · #26 of 47 Show HN launches on 2026-11-13
- #24Pac-Man, but You're the Ghost2 points
- #25Chap2 points
- #26PracticeCalculus, learn calculus by solving problems2 points
- #27Vending machine uses words, not money2 points
- #28Mockingboard Revisited2 points
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Discussion
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- CategoryEducation & Learning: supply, hit rate, top launches →
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Data as of Nov 13, 2026, 9:22 AM UTC. Sector comes from keyword rules on the title and tagline and can be wrong. How it works