- prev - previous
- idk - I don't Know
- idc - I don't Care
- T - Transpose
- prod - production
- Base/Core - Base of Library, NumPy Covered This in PyThon, This is Basicly Basic NumPy
- l - Learn, Mostly Point to /learn
- preq - prerequisite
- preqs - prerequisites
- req - requirement
- reqs - requirements
- ik - I know
- col - column
- cols - columns