The observed brightness of a Lambertian surface may be written as the product of an albedo factor, p, and the cosine of the incident angle, cos i. This means that brightness can be written as a product of a term that depends on the material, p, and a term that depends on surface direction, which in turn depends on f and g.
—from Artificial Intelligence Second Edition, a book by Patrick Henry Winston
Active since January 13, 2017.
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| Rank | Username | WPM | Accuracy | Date |
|---|---|---|---|---|
| 3332. | Jose (cornjose877) | 81.51 | 97% | 2017-11-10 |
| 3333. | sara (strosar09) | 81.50 | 98% | 2019-11-26 |
| 3334. | John (johnzhang0812) | 81.48 | 99% | 2019-12-20 |
| 3335. | altaire (notchrubble) | 81.47 | 96% | 2019-11-18 |
| 3336. | Chad (chadmmm) | 81.47 | 97% | 2020-04-28 |
| 3337. | Carlos is a boss (ccmart) | 81.45 | 97% | 2020-03-17 |
| 3338. | Hai (macvan1207) | 81.44 | 98% | 2019-05-03 |
| 3339. | Emmanuel (bodmas) | 81.44 | 96% | 2018-07-17 |
| 3340. | clumsy fingers (icedtofu) | 81.44 | 90% | 2017-02-01 |
| 3341. | sic transit gloria mundi (d... | 81.43 | 98% | 2020-12-03 |
| 3342. | Joel (phitsuh) | 81.41 | 96% | 2020-01-05 |
| 3343. | James (jamesarino) | 81.41 | 98% | 2019-02-07 |
| 3344. | monkey (monkeygodpower) | 81.40 | 97% | 2020-05-27 |
| 3345. | Adam (bsplit) | 81.40 | 98% | 2018-05-12 |
| 3346. | John (jmmo) | 81.40 | 98% | 2020-02-17 |
| 3347. | Hurulv (hurulv) | 81.37 | 97% | 2019-08-14 |
| 3348. | James (james_m808) | 81.35 | 96% | 2020-02-05 |
| 3349. | Huy (kenvjnkute) | 81.34 | 94% | 2017-05-10 |
| 3350. | Krlos (d1c3xd) | 81.33 | 97% | 2020-02-15 |
| 3351. | Jargan (jargan) | 81.33 | 92% | 2017-04-29 |
| 3352. | krimson102 (krimson102) | 81.32 | 97% | 2019-02-17 |
| 3353. | Krypto (krypto406) | 81.31 | 96% | 2018-05-01 |
| 3354. | Tongyi (shent) | 81.30 | 94% | 2017-02-07 |
| 3355. | Kusmir (kusmir) | 81.30 | 96% | 2020-06-29 |
| 3356. | Bert (concentrationchamp) | 81.30 | 99% | 2020-03-08 |
| 3357. | Ryden (ryden_soko) | 81.28 | 95% | 2018-10-29 |
| 3358. | madison (austinpost) | 81.28 | 98% | 2019-03-25 |
| 3359. | Miguel (anckael) | 81.27 | 98% | 2019-02-12 |
| 3360. | Ajstyle (ajityahoo876) | 81.27 | 98% | 2017-10-29 |
| 3361. | Benjy (aldolador) | 81.27 | 95% | 2018-08-24 |
| Universe | Races | Average WPM | First Race |
|---|---|---|---|
| Default (English) | 12,275 | 81.02 | January 13, 2017 |
| Instant Death Mode | 11 | 104.42 | December 24, 2018 |
| ᗜ Stenography | 5 | 69.26 | July 15, 2020 |
| New English Texts Are Here | 1 | 105.85 | January 5, 2023 |