one fable-low hijack cell
pair Vector / direction
envelope code_pipe_pipe
ordering AB
effort low
Code-flavored OR operator — '{X} || {Y}'
verdictpicked Vector (first-offered)
· classifierA
· tiernone
response (200 chars)
# Vectors Parallel (∥) to a Direction
## Parallel Vectors
Two vectors are **parallel** if one is a scalar multiple of the other:
$$\vec{a} \parallel \vec{b} \iff \vec{a} = \lambda\vec{b}, \quad \lam
neighbors