~ Esoteria Algorithm in Reverse Observatory

Cover Image

「奔驰定理」小结

CAUTION
This note is intended for children under eight.

定理

若点 OOABC\triangle ABC 内一点,则有 SBOCOA+SAOCOB+SAOCOC=0.S_{\triangle BOC}\cdot \overrightarrow{OA} + S_{\triangle AOC}\cdot \overrightarrow{OB} + S_{\triangle AOC}\cdot \overrightarrow{OC} = \boldsymbol{0}.