N

• nargin (Matlab function) — Number of function input arguments
• nargout (Matlab function) — Number of function output arguments
• ndims (Matlab function) — Number of array dimensions
• norm (Matlab function) — Vector and matrix norms
• nthroot (Matlab function) — Real nth root of real numbers
• null (Matlab function) — Null space of a matrix
• num2str (Matlab function) — Number to string conversion