/sci/ - Science & Math

>>15003273
The position of the first body is the vector [math]r[/math], the position of the second body is [math]r'[/math].
Gravitational acceleration on the first body is [math]\ddot{r} = \dfrac{ Gm' }{ \| r' - r \|^3 } (r' - r)[/math]
Flip everything for the second body.
>>15003347
>but whenever I read textbooks it feels like debugging code where rather than doing a binary search with print() or single stepping, you have N steps and your next step is rand() mod N.
Extremely autistic analogy.