| 正弦定理 |
zhèng xián dìng lǐ |
law of sines |
| 正 |
zhēng |
first month of the lunar year |
| 正 |
zhèng |
straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive |
| 正弦 |
zhèng xián |
(math.) sine |
| 弦 |
xián |
bow string / string of musical instrument / watchspring / chord (segment of curve) / hypotenuse / CL:根 |
| 定 |
dìng |
to fix; to set; to make definite / to subscribe to (a newspaper etc); to book (tickets etc); to order (goods etc) / to congeal; to coagulate / (literary) definitely |
| 定理 |
dìng lǐ |
theorem |
| 理 |
lǐ |
texture / grain (of wood) / inner essence / intrinsic order / reason / logic / truth / science / natural science (esp. physics) / to manage / to pay attention to / to run (affairs) / to handle / to put in order / to tidy up |