Answers a Radians instance, using math.acos(v). >>> a = degrees(0) >>> acos(a.cos) 0.5rad >>> a = degrees(180) >>> acos(a.cos).degrees -90
(v)
| 2274 | return radians(math.asin(v)/math.pi) |
| 2275 | |
| 2276 | def acos(v): |
| 2277 | """Answers a Radians instance, using math.acos(v). |
| 2278 | |
| 2279 | >>> a = degrees(0) |
| 2280 | >>> acos(a.cos) |
| 2281 | 0.5rad |
| 2282 | >>> a = degrees(180) |
| 2283 | >>> acos(a.cos).degrees |
| 2284 | -90 |
| 2285 | """ |
| 2286 | return radians(math.asin(v)/math.pi) |
| 2287 | |
| 2288 | def atan(v): |
| 2289 | """Answers a Radians instance, using math.atan(v). |