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 |
|---|---|---|---|---|
| 4158. | triangle (triangle369) | 75.03 | 97% | 2020-07-22 |
| 4159. | J. (superg74) | 75.03 | 97% | 2020-08-04 |
| 4160. | Wayne (retroweezy) | 75.03 | 98% | 2018-11-13 |
| 4161. | Tahsin (drevil13) | 75.03 | 97% | 2020-11-12 |
| 4162. | Kostas (orange_inc) | 75.03 | 95% | 2019-12-17 |
| 4163. | Hasan (notelex) | 75.03 | 97% | 2020-08-21 |
| 4164. | Hassan (theunknownguy) | 75.02 | 97% | 2020-08-09 |
| 4165. | Eric (envyhope) | 75.02 | 97% | 2020-04-12 |
| 4166. | Naval (naval) | 75.02 | 99% | 2017-11-02 |
| 4167. | lebum (lebum) | 75.01 | 96% | 2018-05-10 |
| 4168. | Norton (pajj) | 75.00 | 98% | 2018-06-19 |
| 4169. | Santiago (drebexler) | 74.96 | 96% | 2020-09-17 |
| 4170. | Max (lijmer) | 74.94 | 94% | 2019-01-08 |
| 4171. | α+ßx+ε (wrodar) | 74.94 | 96% | 2017-06-17 |
| 4172. | Jai (jais) | 74.94 | 98% | 2017-06-16 |
| 4173. | Smarmy (smarmyraptor) | 74.92 | 95% | 2017-08-13 |
| 4174. | kory (korysommers) | 74.91 | 98% | 2017-03-01 |
| 4175. | zachary (zhutton) | 74.91 | 96% | 2020-11-02 |
| 4176. | Yosri (yosri) | 74.91 | 97% | 2018-03-14 |
| 4177. | Brandon (blpreston) | 74.91 | 97% | 2017-08-27 |
| 4178. | Not as fast as Reckful (bol... | 74.90 | 96% | 2020-01-21 |
| 4179. | Jamal (jay_777_) | 74.90 | 97% | 2019-02-17 |
| 4180. | Autumn (act01) | 74.88 | 96% | 2020-10-19 |
| 4181. | Ellie (elliebearroar) | 74.87 | 97% | 2019-01-23 |
| 4182. | Kriss (kriss5a) | 74.87 | 96% | 2018-10-04 |
| 4183. | Leo (leofuller) | 74.86 | 96% | 2019-03-08 |
| 4184. | Winnie (likeastaracrossmysky) | 74.85 | 98% | 2019-08-24 |
| 4185. | Simon (wizard_sheep) | 74.85 | 95% | 2020-11-20 |
| 4186. | sendhilkumar (coolsendhil) | 74.85 | 99% | 2017-06-21 |
| 4187. | Alf Mikael (alf_m) | 74.85 | 97% | 2018-02-19 |
| 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 |