17:[[45036708,{"by":"shivajikobardan","descendants":28,"id":45036708,"kids":[45061241,45059376,45061707,45060305,45059743,45066762,45059089,45060905,45060227,45059157,45059900,45062883,45075220,45059037,45059370,45062431,45061500],"score":71,"text":"parametric cubic curve

boundary representation

blending function

spline

b-spline

cubic bezier curve

de casteljau algorithm

I have been diving into these topics since few days and I have not understood anything. I tried peter shirley's textbook on Computer Graphics. Foley et al, Hearn baker etc...

It is clear to me that I lack the mathematics preriquisites for understanding this. Thus, I am deeply asking for resources that I can do to brush up. Me being a computer engineering graduate I have done math classes, it is just that I became like a calculator instead of understanding the logic behind doing the formulas and steps so need a short revision.","time":1756281421,"title":"Ask HN: What to learn for math for modeling?","type":"story"}],[42806069,{"by":"dogancan","descendants":25,"id":42806069,"kids":[42807005,42806310,42807226,42807603,42819584,42807568,42807919,42807417,42806199,42807721],"score":33,"text":"built a web app that uses k-means clustering on artist genres (one or multiple) to automatically organize Spotify liked songs into playlists. clean UI.

you might have to click refresh playlists couple of times to get what you want. comments are appreciated. thanks!","time":1737654090,"title":"Show HN: Mixlist","type":"story","url":"https://www.mixlist.org/"}],[41995427,{"by":"dennis16384","descendants":24,"id":41995427,"kids":[42000761,42000215,42012080,42000277,42007052,42004724,42000388],"score":54,"text":"Hi HN!

I built Routing24 to make route optimization easier and accessible for small businesses and solo drivers.

With Google Maps, you can plan routes between a few locations for free, but it doesn’t support efficient multi-stop planning, handling multiple vehicles, or adding specific business rules like delivery time windows.

Many tools offer route optimization for around $30 per vehicle per month, but Routing24 provides it completely free. Optimization happens fully on the client-side, using your device’s resources instead of cloud servers.

The interface is simple for now: you can import/export using Excel, and there’s a web UI to edit and view imported data and optimized routes. Data is saved or uploaded anywhere, and one browser tab runs one optimization. Map data comes from OpenStreetMap, and the solver is built in C++/WASM, using public domain algorithms.

I’d love to hear any feedback as I keep developing it. Thanks, and I hope it’s useful!","time":1730298971,"title":"Show HN: Routing24 – Free route optimization in the browser","type":"story","url":"https://routing24.com"}],[41898910,{"by":"zora_goron","descendants":19,"id":41898910,"kids":[41906711,41928007,41927873,41927583,41910028,41914727,41899695,41931649,41901554,41908158,41909502,41899597],"score":69,"time":1729462281,"title":"Show HN: Semantic Macros Text Editor","type":"story","url":"https://samtxt.samrawal.com/"}],[40925906,{"by":"eguchi1904","descendants":201,"id":40925906,"kids":[40926555,40928789,40927122,40926587,40926553,40929502,40927814,40926607,40928723,40928865,40930367,40926798,40927496,40932105,40927530,40926477,40926446,40932495,40975379,40932800,40926554,40926817,40928355,40931332,40994732,40927010,40930259,40938586,40927643,40934510,40948443,40926615,40926813,40927187,40926928,40927350,40928662,40926462,40926638,40935368,40927995,40926666,40928945,40926632,40927736,40927507,40933074,40927241,40926484,40935565,40926849,40928695,40926671,40927924,40927058,40926675,40927803,40927830,40929275,40934847,40937303,40928250,40927041,40930604,40930950,40932830,40926497,40931997,40928561,40926535,40929110,40927395,40932669,40929830,40928771,40932765,40929684,40929070,40926566,40926815,40932920,40926782],"score":219,"text":"$18","time":1720612475,"title":"Show HN: I made a Note-Taking app for people who keep texting themselves","type":"story","url":"https://strflow.app"}],[39647164,{"by":"dwilding","descendants":28,"id":39647164,"kids":[39649131,39648815,39601154,39675655,39653279,39651572,39649601,39650554,39649347,39650837,39649317],"score":74,"text":"$19","time":1709936110,"title":"Show HN: My AI writing assistant for Chinese","type":"story","url":"https://unscrambler.dpw.me/"}],[39534078,{"by":"anonnanianon","descendants":17,"id":39534078,"kids":[39538934,39535004,39535238,39546449,39584788,39542096,39534553,39543710,39534729,39577674],"score":50,"text":"$1a","time":1709095185,"title":"Ask HN: LinkedIn Verification with ID due to \"your profile photo was changed\"","type":"story"}]]

user:	bulubulu
created:	August 8, 2023
karma:	3