nxn1

Nx n1 is not a widely standardized term and its meaning typically depends on the context in which it appears. In many mathematical or computational settings, it can be interpreted as a compact notation for a two-dimensional size: specifically, an n by (n−1) object such as a matrix or grid. For example, a matrix A of size n × (n−1) would belong to the set of real or complex matrices with n rows and n−1 columns, often written as A ∈ F^{n×(n−1)}.

Beyond strict dimension notation, nxn1 may also arise as a shorthand in informal notes to indicate a cross-product-like dimension, a rectangular array, or a layout with n rows and n−1 columns. In programming or data structures, it could simply label a two-dimensional array or dataset where the shape is determined by the variables n and n−1 in a given problem.

In other domains, nxn1 can appear as an arbitrary identifier or code, such as a label for a dataset, a variable name in a script, or a placeholder in documentation. Because it uses both numeric components and a trailing numeral, misinterpretation is common if parentheses, multiplication signs, or context are omitted.

To determine the intended meaning, examine surrounding notation and definitions: is the symbol used with dimensions, a matrix, or a grid? Are there explicit references to n−1, a vector, or an indexing scheme? In formal work, authors typically clarify by writing A ∈ F^{n×(n−1)} or explicitly stating the dimensions to avoid ambiguity.

See also: matrix dimensions, grid graphs, Cartesian product, notation conventions.