phase plane
the phase plane is the xy-plane and the possible evolutions or trajectories of the system can be sketched as in the figure. This system has an unstable equilibrium at the origin.
Trajectories in a phase plane
- nought
- nowhere dense
- nowhere-differentiable function
- NP problem
- NRICH
- nth derivative
- nth-order partial derivative
- nth root
- nth root of unity
- n-tuple
- null hypothesis
- nullity
- null matrix
- null measure
- null sequence
- null set
- null set
- null space
- Nullstellensatz
- null vector
- number
- number field
- number line
- Numberphile
- number systems