勾股定理

Pythagorean theorem

surname Gou

to attract / to arouse / to tick / to strike out / to delineate / to collude / variant of 鉤|钩[gou1], hook

see 勾當|勾当[gou4 dang4]

thigh / part of a whole / portion of a sum / (stock) share / strand of a thread / low-level administrative unit, translated as "section" or "department" etc, ranked below 科[ke1] / classifier for long winding things like ropes, rivers etc / classifier for smoke, smells etc: thread, puff, whiff / classifier for bands of people, gangs etc / classifier for sudden forceful actions

to set / to fix / to determine / to decide / to order

established theory / theorem (math.)

theorem

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